Schumm, S. A. (1972). River morphology. Stroudsburg, Pennsylvania : Dowden, Hutchinson and Ross.
芝加哥风格引文Schumm, Stanley A. River Morphology. Stroudsburg, Pennsylvania : Dowden, Hutchinson and Ross, 1972.
MLA引文Schumm, Stanley A. River Morphology. Stroudsburg, Pennsylvania : Dowden, Hutchinson and Ross, 1972.
警告：这些引文格式不一定是100％准确.