APA ציטוט

Cobban, W., & Kennedy, W. (1990). Variation and ontogeny of Calycoceras (Proeucalycoceras) canitaurinum (Haas, 1949) from the Upper Cretaceous (Cenomanian) of the Western Interior of the United States.

Chicago Style (17th ed.) Citation

Cobban, W., and W. Kennedy. Variation and Ontogeny of Calycoceras (Proeucalycoceras) Canitaurinum (Haas, 1949) from the Upper Cretaceous (Cenomanian) of the Western Interior of the United States. 1990.

ציטוט MLA

Cobban, W., and W. Kennedy. Variation and Ontogeny of Calycoceras (Proeucalycoceras) Canitaurinum (Haas, 1949) from the Upper Cretaceous (Cenomanian) of the Western Interior of the United States. 1990.