Cita APA (7a ed.)

Willoughby, A. (1979). The alcohol troubled person: Known and unknown. Nelson-Hall.

Cita Chicago Style (17a ed.)

Willoughby, Alan. The Alcohol Troubled Person: Known and Unknown. Chicago: Nelson-Hall, 1979.

Cita MLA (9a ed.)

Willoughby, Alan. The Alcohol Troubled Person: Known and Unknown. Nelson-Hall, 1979.