Cita APA

Longwell, C. R. 1., & Longwell, C. R. 1. (1948). Physical geology (3. edition.). New York, New York: Willey.

Citación estilo Chicago

Longwell, Chester Ray 1887-1975, y Chester Ray 1887-1975 Longwell. Physical Geology. 3. edition. New York, New York: Willey, 1948.

Cita MLA

Longwell, Chester Ray 1887-1975, y Chester Ray 1887-1975 Longwell. Physical Geology. 3. edition. New York, New York: Willey, 1948.