Schumm, S. A. (1972). River morphology. Stroudsburg, Pennsylvania : Dowden, Hutchinson and Ross.
Cita Chicago Style (17a ed.)Schumm, Stanley A. River Morphology. Stroudsburg, Pennsylvania : Dowden, Hutchinson and Ross, 1972.
Cita MLA (9a ed.)Schumm, Stanley A. River Morphology. Stroudsburg, Pennsylvania : Dowden, Hutchinson and Ross, 1972.
Precaución: Estas citas no son 100% exactas.