Style de citation APA (7e éd.)

Worcester, P. G. (1969). Textbook of geomorphology (2nd ed.). Van Nostrand.

Style de citation Chicago (17e éd.)

Worcester, Philip G. Textbook of Geomorphology. 2nd ed. New york: Van Nostrand, 1969.

Style de citation MLA (9e éd.)

Worcester, Philip G. Textbook of Geomorphology. 2nd ed. Van Nostrand, 1969.