APA (7th ed.) Citation

Walker, R. P. (1980). Prisoners of war in Texas during World War II. [publisher not identified].

Chicago Style (17th ed.) Citation

Walker, Richard Paul. Prisoners of War in Texas During World War II. [Place of publication not identified]: [publisher not identified], 1980.

MLA (9th ed.) Citation

Walker, Richard Paul. Prisoners of War in Texas During World War II. [publisher not identified], 1980.