Cita APA (7th ed.)

Stahl, B. J. (1973). Vertebrate history: Problems in evolution. McGraw-Hill.

Cita Chicago (17th ed.)

Stahl, Barbara J. Vertebrate History: Problems in Evolution. New York: McGraw-Hill, 1973.

Cita MLA (9th ed.)

Stahl, Barbara J. Vertebrate History: Problems in Evolution. McGraw-Hill, 1973.