Citazione APA

(1973). Dictionary of the flowering plants and ferns (8th ed.). International Book Distributor.

Stile di citazione Chicago

Dictionary of the Flowering Plants and Ferns. 8th ed. Dehradun: International Book Distributor, 1973.

Citazione MLA

Dictionary of the Flowering Plants and Ferns. 8th ed. International Book Distributor, 1973.