Cita APA (7a ed.)

Cullingford, R. (1980). Timescales in geomorphology. John Wiley and Sons.

Cita Chicago Style (17a ed.)

Cullingford, R.A. Timescales in Geomorphology. New York: John Wiley and Sons, 1980.

Cita MLA (9a ed.)

Cullingford, R.A. Timescales in Geomorphology. John Wiley and Sons, 1980.