APA (7th ed.) Citation

Van Siclen, D. C. (1951). Fossil organic reefs of a West Texas area. [publisher not identified].

Chicago Style (17th ed.) Citation

Van Siclen, Dewitt Clinton. Fossil Organic Reefs of a West Texas Area. [Place of publication not identified]: [publisher not identified], 1951.

MLA (9th ed.) Citation

Van Siclen, Dewitt Clinton. Fossil Organic Reefs of a West Texas Area. [publisher not identified], 1951.