APA (7th ed.) Citation

Marcos, F. E. (1968). A unity of purpose. [publisher not identified].

Chicago Style (17th ed.) Citation

Marcos, Ferdinand E. A Unity of Purpose. [place of publication not identified]: [publisher not identified], 1968.

MLA (9th ed.) Citation

Marcos, Ferdinand E. A Unity of Purpose. [publisher not identified], 1968.

Warning: These citations may not always be 100% accurate.