Cita APA (7th ed.)

Alexander, G. (1951). General zoology (4a. ed.). Barnes & Noble.

Cita Chicago (17th ed.)

Alexander, Gordon. General Zoology. 4a. ed. Nueva York: Barnes & Noble, 1951.

Cita MLA (9th ed.)

Alexander, Gordon. General Zoology. 4a. ed. Barnes & Noble, 1951.