APA (7th ed.) Citation

Birkhead, P. K. (1964). Stromatoporoidea of Missouri. [publisher not identified].

Chicago Style (17th ed.) Citation

Birkhead, Paul K. Stromatoporoidea of Missouri. [Place of publication not identified]: [publisher not identified], 1964.

MLA (9th ed.) Citation

Birkhead, Paul K. Stromatoporoidea of Missouri. [publisher not identified], 1964.