Citazione Stile APA (7a Edizione)

Briggs, D., & Walters, S. (1984). Plant variation and evolution (2nd ed.). Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Briggs, D., e S.M Walters. Plant Variation and Evolution. 2nd ed. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1984.

Citatione MLA (9a ed.)

Briggs, D., e S.M Walters. Plant Variation and Evolution. 2nd ed. Cambridge University Press, 1984.