APA (7th ed.) Citation

Cobban, W. A., & Hook, S. C. (1979). Collignoniceras woollgari woollgari (Mantell) ammonite fauna from Upper Cretaceous of Western Interior, United States. New Mexico Bureau of Mines & Mineral Resources.

Chicago Style (17th ed.) Citation

Cobban, William A., and Stephen C. Hook. Collignoniceras Woollgari Woollgari (Mantell) Ammonite Fauna from Upper Cretaceous of Western Interior, United States. Socorro: New Mexico Bureau of Mines & Mineral Resources, 1979.

MLA (9th ed.) Citation

Cobban, William A., and Stephen C. Hook. Collignoniceras Woollgari Woollgari (Mantell) Ammonite Fauna from Upper Cretaceous of Western Interior, United States. New Mexico Bureau of Mines & Mineral Resources, 1979.