APA (7th ed.) Citation

Bohlen, T., & Tisdale, T. (1963). An era of violence. [publisher not identified].

Chicago Style (17th ed.) Citation

Bohlen, Ted, and Tom Tisdale. An Era of Violence. [Place of publication not identified]: [publisher not identified], 1963.

MLA (9th ed.) Citation

Bohlen, Ted, and Tom Tisdale. An Era of Violence. [publisher not identified], 1963.