Cita APA (7a ed.)

Ziegler, P. (2011). National drug threat assessment and international drug control. Nova Science Publ.

Cita Chicago Style (17a ed.)

Ziegler, Paul. National Drug Threat Assessment and International Drug Control. New York: Nova Science Publ, 2011.

Cita MLA (8a ed.)

Ziegler, Paul. National Drug Threat Assessment and International Drug Control. Nova Science Publ, 2011.