Cita APA (7a ed.)

Small, E., & Catling, P. M. (1999). Canadian medicinal crops. NRC Research Press.

Cita Chicago Style (17a ed.)

Small, Ernest, y Paul M. Catling. Canadian Medicinal Crops. Ottawa: NRC Research Press, 1999.

Cita MLA (8a ed.)

Small, Ernest, y Paul M. Catling. Canadian Medicinal Crops. NRC Research Press, 1999.