MORGAN, R. (1979). Soil erosion: Topics in applied geography. Longman.
芝加哥风格引文MORGAN, R.P.C. Soil Erosion: Topics in Applied Geography. London: Longman, 1979.
MLA引文MORGAN, R.P.C. Soil Erosion: Topics in Applied Geography. Longman, 1979.
警告：这些引文格式不一定是100％准确.