Cita APA

Samuelsson, G., & Bohlin, L. (2009). Drugs natural origin: A treatise of pharmacognosy (6. ed. revisada.). Sweden: Apotekarsocieteten.

Citación estilo Chicago

Samuelsson, Gunnar, y Lars Bohlin. Drugs Natural Origin: A Treatise of Pharmacognosy. 6. ed. revisada. Sweden: Apotekarsocieteten, 2009.

Cita MLA

Samuelsson, Gunnar, y Lars Bohlin. Drugs Natural Origin: A Treatise of Pharmacognosy. 6. ed. revisada. Sweden: Apotekarsocieteten, 2009.