Cita APA (7a ed.)

Wyckoff, J. ,. (1966). Rock time , and landforms. Harper & Row.

Cita Chicago Style (17a ed.)

Wyckoff, Jerome ,. Rock Time , and Landforms. New york: Harper & Row, 1966.

Cita MLA (9a ed.)

Wyckoff, Jerome ,. Rock Time , and Landforms. Harper & Row, 1966.