Cita APA (7a ed.)

Twenhoffel, W. (1941). Methodos of study of sediments. McGraw-Hill.

Cita Chicago Style (17a ed.)

Twenhoffel, W. Methodos of Study of Sediments. New York: McGraw-Hill, 1941.

Cita MLA (9a ed.)

Twenhoffel, W. Methodos of Study of Sediments. McGraw-Hill, 1941.