NA. (2008). Cretaceous trichotropid gastropods from the Pacific slope of North America: Possible pathways to calyptraeid morphology. Zenodo.
Chicago Style (17th ed.) CitationNA. Cretaceous Trichotropid Gastropods from the Pacific Slope of North America: Possible Pathways to Calyptraeid Morphology. Zenodo, 2008.
MLA (9th ed.) CitationNA. Cretaceous Trichotropid Gastropods from the Pacific Slope of North America: Possible Pathways to Calyptraeid Morphology. Zenodo, 2008.
Warning: These citations may not always be 100% accurate.