Citazione Stile APA (7a Edizione)

Levetin, E., & McMahon, K. (2011). Plants & society (6th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Levetin, Estelle, e Karen McMahon. Plants & Society. 6th ed. New York: McGraw-Hill, 2011.

Citatione MLA (8a ed.)

Levetin, Estelle, e Karen McMahon. Plants & Society. 6th ed. McGraw-Hill, 2011.