Citazione Stile APA (7a Edizione)

Duke, J. A., & By, D.. (2002). Hand book of medicinal herbs (2nd ed.). CRC Pr..

Citazione stile Chigago Style (17a edizione)

Duke, James A., e Duke By. Hand Book of Medicinal Herbs. 2nd ed. Boca Raton: CRC Pr., 2002.

Citatione MLA (9a ed.)

Duke, James A., e Duke By. Hand Book of Medicinal Herbs. 2nd ed. CRC Pr., 2002.