Notes on fossil and subfossil birdsPublished in Smithsonian Miscellaneous Collections, in 1962, in volume 145, issue 2, pages 1-17Systematic notes concerned with the avifauna of PanamaPublished in Smithsonian Miscellaneous Collections, in 1962, in volume 145, issue 1, pages 1-14
Systematic notes concerned with the avifauna of PanamaPublished in Smithsonian Miscellaneous Collections, in 1962, in volume 145, issue 1, pages 1-14