APA (7e ed.) Bronvermelding

Duke, J. A. (1997). The green pharmacy: The ultimate compendium of natural remedies from the world's foremost authority on healing herbs. St. Martin's Paperbacks.

Chicago (17e ed.) Bronvermelding

Duke, James A. The Green Pharmacy: The Ultimate Compendium of Natural Remedies from the World's Foremost Authority on Healing Herbs. New York, N.Y: St. Martin's Paperbacks, 1997.

MLA (9e ed.) Bronvermelding

Duke, James A. The Green Pharmacy: The Ultimate Compendium of Natural Remedies from the World's Foremost Authority on Healing Herbs. St. Martin's Paperbacks, 1997.