Published in University of Kansas publications, Museum of Natural History, in 1968, in volume 16, issue 6, pages 473-579

Published in University of Kansas Publications Museum of Natural History, in 1968, in volume 16, issue 8, pages 777-837

Published in University of Kansas Publications. Museum of Natural History, in 1968, in volume 17, pages 503-515

Published in University of Kansas Publications. Museum of Natural History, in 1968, in volume 17, pages 519-557

Published in University of Kansas Publications. Museum of Natural History, in 1968, in volume 17, pages 559-578

Published in University of Kansas Publications of the Museum of Natural History, in 1968, in volume 17, issue 12, pages 517-557

Published in University of Kansas Publications. Museum of Natural History, in 1968, in volume 18, pages 1-10