Citazione Stile APA (7a Edizione)

Weaver, J. E., & Clements, F. E. (1938). Plant ecology (2nd ed.). McGraw-Hill Book Company, Inc..

Citazione stile Chigago Style (17a edizione)

Weaver, John E., e Frederic E. Clements. Plant Ecology. 2nd ed. New York ; London: McGraw-Hill Book Company, Inc., 1938.

Citatione MLA (9a ed.)

Weaver, John E., e Frederic E. Clements. Plant Ecology. 2nd ed. McGraw-Hill Book Company, Inc., 1938.