Παραπομπή σε μορφή APA (7η εκδ.)

Leung Albert Y. & Foster Steven. (1996). Encyclopedia of common natural ingredients: Used in food, drugs and cosmetics (2nd ed.). Wiley, J.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Leung Albert Y. και Foster Steven. Encyclopedia of Common Natural Ingredients: Used in Food, Drugs and Cosmetics. 2nd ed. Wiley, J, 1996.

Παραπομπή σε μορφή MLA (8th εκδ.)

Leung Albert Y. και Foster Steven. Encyclopedia of Common Natural Ingredients: Used in Food, Drugs and Cosmetics. 2nd ed. Wiley, J, 1996.