Published in Madroño, in 1972, in volume 21, issue 5, pages 265-267
Published in Madroño, in 1972, in volume 21, issue 5, pages 267
Published in Madroño, in 1972, in volume 21, issue 5, pages 268-273
Published in Madroño, in 1972, in volume 21, issue 5, pages 273-298
Published in Madroño, in 1972, in volume 21, issue 5, pages 298
Published in Madroño, in 1972, in volume 21, issue 5, pages 299-304
Published in Madroño, in 1972, in volume 21, issue 5, pages 304
Published in Madroño, in 1972, in volume 21, issue 5, pages 305-319
Published in Madroño, in 1972, in volume 21, issue 5, pages 319-328
Published in Madroño, in 1972, in volume 21, issue 5, pages 329-393
Published in Madroño, in 1972, in volume 21, issue 6, pages 395-402
Published in Madroño, in 1972, in volume 21, issue 6, pages 402
Published in Madroño, in 1972, in volume 21, issue 6, pages 403-404
Published in Madroño, in 1972, in volume 21, issue 6, pages 404
Published in Madroño, in 1972, in volume 21, issue 6, pages 405-416
Published in Madroño, in 1972, in volume 21, issue 6, pages 416
Published in Madroño, in 1972, in volume 21, issue 6, pages 417-420
Published in Madroño, in 1972, in volume 21, issue 6, pages 421-422
Published in Madroño, in 1972, in volume 21, issue 6, pages 423-425
Published in Madroño, in 1972, in volume 21, issue 6, pages 425
Published in Madroño, in 1972, in volume 21, issue 6, pages 426-434
Published in Madroño, in 1972, in volume 21, issue 6, pages 435-438
Published in Madroño, in 1972, in volume 21, issue 6, pages 439-445
Published in Madroño, in 1972, in volume 21, issue 6, pages 445
Published in Madroño, in 1972, in volume 21, issue 6, pages 446-448
Published in Madroño, in 1972, in volume 21, issue 6, pages 449
Published in Madroño, in 1972, in volume 21, issue 6, pages 450
Published in Madroño, in 1972, in volume 21, issue 7, pages 451-455
Published in Madroño, in 1972, in volume 21, issue 7, pages 455
Published in Madroño, in 1972, in volume 21, issue 7, pages 456-458
Published in Madroño, in 1972, in volume 21, issue 7, pages 458
Published in Madroño, in 1972, in volume 21, issue 7, pages 459-462
Published in Madroño, in 1972, in volume 21, issue 7, pages 462
Published in Madroño, in 1972, in volume 21, issue 7, pages 463-481
Published in Madroño, in 1972, in volume 21, issue 7, pages 482-486
Published in Madroño, in 1972, in volume 21, issue 7, pages 486
Published in Madroño, in 1972, in volume 21, issue 7, pages 487-489
Published in Madroño, in 1972, in volume 21, issue 7, pages 489-490
Published in Madroño, in 1972, in volume 21, issue 7, pages 490
Published in Madroño, in 1972, in volume 21, issue 7, pages 491-492
Published in Madroño, in 1972, in volume 21, issue 7, pages 492-493
Annual Review of Ecology and Systematics by Richard F. Johnston, Peter W. Frank, Charles D. Michener
Published in Madroño, in 1972, in volume 21, issue 7, pages 494
Published in Madroño, in 1972, in volume 21, issue 7, pages 495
Published in Madroño, in 1972, in volume 21, issue 7, pages 496
Published in Madroño, in 1972, in volume 21, issue 7, pages 497
Published in Madroño, in 1972, in volume 21, issue 8, pages 499-504
Published in Madroño, in 1972, in volume 21, issue 8, pages 505-515
L. H. Shinners' Collection of Anthophilous Hymenoptera Deposited in Dallas Museum of Natural History
Published in Madroño, in 1972, in volume 21, issue 8, pages 515
Published in Madroño, in 1972, in volume 21, issue 8, pages 526-535
Published in Madroño, in 1972, in volume 21, issue 8, pages 535
Published in Madroño, in 1972, in volume 21, issue 8, pages 536-539
Published in Madroño, in 1972, in volume 21, issue 8, pages 539
Published in Madroño, in 1972, in volume 21, issue 8, pages 540-541
Published in Madroño, in 1972, in volume 21, issue 8, pages 542