Citazione Stile APA (7a Edizione)

Kowalchik, C., & Hylton, . W. H. (1987). Rodale's illustrated encyclopedia of herbs (First edition.). Rodale Press.

Citazione stile Chigago Style (17a edizione)

Kowalchik, Claire, e William H. Hylton. Rodale's Illustrated Encyclopedia of Herbs. First edition. Pensylvania: Rodale Press, 1987.

Citatione MLA (8a ed.)

Kowalchik, Claire, e William H. Hylton. Rodale's Illustrated Encyclopedia of Herbs. First edition. Rodale Press, 1987.