Cita APA (7a ed.)

Wells, B. (1973). Psychedelic drugs: Psychological, medical and social issues. Penguin.

Cita Chicago Style (17a ed.)

Wells, Brian. Psychedelic Drugs: Psychological, Medical and Social Issues. Harmondsworth: Penguin, 1973.

Cita MLA (8a ed.)

Wells, Brian. Psychedelic Drugs: Psychological, Medical and Social Issues. Penguin, 1973.