APA (7th ed.) Citation

Abel, E. L. (1979). A comprehensive guide to the cannabis literature. Greenwood Pr.

Chicago Style (17th ed.) Citation

Abel, Ernest L. A Comprehensive Guide to the Cannabis Literature. Westport, Conn: Greenwood Pr, 1979.

MLA (9th ed.) Citation

Abel, Ernest L. A Comprehensive Guide to the Cannabis Literature. Greenwood Pr, 1979.