Cita APA

Cooke, C. W. n. 1., & Cooke, C. W. n. 1. (1961). Cenozoic and cretaceous echinoids from Trinidad and Venezuela. Washington.

Citación estilo Chicago

Cooke, Charles Wythe n. 1887, y Charles Wythe n. 1887 Cooke. Cenozoic and Cretaceous Echinoids From Trinidad and Venezuela. Washington, 1961.

Cita MLA

Cooke, Charles Wythe n. 1887, y Charles Wythe n. 1887 Cooke. Cenozoic and Cretaceous Echinoids From Trinidad and Venezuela. Washington, 1961.