Cita APA (7a ed.)

(1937). The geology and biology of the San Carlos mountains, Tamaulipas, Mexico. Ann Arbor.

Cita Chicago Style (17a ed.)

The Geology and Biology of the San Carlos Mountains, Tamaulipas, Mexico. Michigan: Ann Arbor, 1937.

Cita MLA (9a ed.)

The Geology and Biology of the San Carlos Mountains, Tamaulipas, Mexico. Ann Arbor, 1937.