Cita APA (7a ed.)

Kolumbien Presidencia de la República. (1990). The fight against the drug traffic in Colombia.

Cita Chicago Style (17a ed.)

Kolumbien Presidencia de la República. The Fight Against the Drug Traffic in Colombia. Bogota, 1990.

Cita MLA (9a ed.)

Kolumbien Presidencia de la República. The Fight Against the Drug Traffic in Colombia. 1990.