Published in Miscellaneous publication - University of Kansas, Museum of Natural History, in 1969, in volume 50, pages 1-22

Published in Miscellaneous publication - University of Kansas, Museum of Natural History, in 1969, in volume 51, pages 93-112

Published in Misc. Pubi. Univ. Kansas Mus. nat. Hist., in 1969, in volume 51, pages 283-288