Cita APA (7a ed.)

Marsal, R. J. (1975). The lacustrine clays of the Valley of Mexico. UNAM.

Cita Chicago Style (17a ed.)

Marsal, Raúl J. The Lacustrine Clays of the Valley of Mexico. México: UNAM, 1975.

Cita MLA (8a ed.)

Marsal, Raúl J. The Lacustrine Clays of the Valley of Mexico. UNAM, 1975.