Cita APA

Watts, D. (1971). Principles of Biogeography. [S.l.]: McGraw-Hill.

Citación estilo Chicago

Watts, David. Principles of Biogeography. [S.l.]: McGraw-Hill, 1971.

Cita MLA

Watts, David. Principles of Biogeography. [S.l.]: McGraw-Hill, 1971.