Cita APA (7a ed.)

Grupp, S. E. (1973). The Marihuana Muddle. Lexington, Mass.

Cita Chicago Style (17a ed.)

Grupp, Stanley E. The Marihuana Muddle. Toronto: Lexington, Mass, 1973.

Cita MLA (8a ed.)

Grupp, Stanley E. The Marihuana Muddle. Lexington, Mass, 1973.