Cita APA (7a ed.)

Goodwin, L. R. (1975). Psycho-social motivations for the initial, continuing, and discontinuing use of marihuana and the psychedelic drugs. Xerox Univ. Microfilms.

Cita Chicago Style (17a ed.)

Goodwin, Lloyd R. Psycho-social Motivations for the Initial, Continuing, and Discontinuing Use of Marihuana and the Psychedelic Drugs. Ann Arbor, Mich: Xerox Univ. Microfilms, 1975.

Cita MLA (9a ed.)

Goodwin, Lloyd R. Psycho-social Motivations for the Initial, Continuing, and Discontinuing Use of Marihuana and the Psychedelic Drugs. Xerox Univ. Microfilms, 1975.