APA (7th ed.) Citation

Laughlin, T., & Christina, T. (1973). Billy Jack. Avon Books.

Chicago Style (17th ed.) Citation

Laughlin, Tom, and Teresa Christina. Billy Jack. [New York]: Avon Books, 1973.

MLA (9th ed.) Citation

Laughlin, Tom, and Teresa Christina. Billy Jack. Avon Books, 1973.