Cita APA (7a ed.)

Walker, W. O. (1989). Drug control in the Americas (rev. ed.). Univ. of New Mexico Pr.

Cita Chicago Style (17a ed.)

Walker, William O. Drug Control in the Americas. rev. ed. Albuquerque: Univ. of New Mexico Pr, 1989.

Cita MLA (9a ed.)

Walker, William O. Drug Control in the Americas. rev. ed. Univ. of New Mexico Pr, 1989.