APA (7th ed.) Citation

Smithsonian Institution. Office of the Secretary & Springer, F. (1923). On fossil crinoid family Catillocrinidae. [publisher not identified].

Chicago Style (17th ed.) Citation

Smithsonian Institution. Office of the Secretary and Frank Springer. On Fossil Crinoid Family Catillocrinidae. Washington, D.C.: [publisher not identified], 1923.

MLA (9th ed.) Citation

Smithsonian Institution. Office of the Secretary and Frank Springer. On Fossil Crinoid Family Catillocrinidae. [publisher not identified], 1923.