Cita APA (7th ed.)

Modell, W. (1970). Drugs of choice, 1970-1971. Mosby.

Cita Chicago (17th ed.)

Modell, Walter. Drugs of Choice, 1970-1971. Saint Louis: Mosby, 1970.

Cita MLA (9th ed.)

Modell, Walter. Drugs of Choice, 1970-1971. Mosby, 1970.