Saul, L. R. (1988). New Late Cretaceous and Early Tertiary Perissitydae (gastropoda) from the Pacific slope of North America. Natural Museum of Los Angeles County.
Chicago-Zitierstil (17. Ausg.)Saul, Louella R. New Late Cretaceous and Early Tertiary Perissitydae (gastropoda) from the Pacific Slope of North America. Los Angeles: Natural Museum of Los Angeles County, 1988.
MLA-Zitierstil (9. Ausg.)Saul, Louella R. New Late Cretaceous and Early Tertiary Perissitydae (gastropoda) from the Pacific Slope of North America. Natural Museum of Los Angeles County, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.