MORGAN, R. (1995). Soil erosion and conservation.-- Ed.2. Longman.
芝加哥风格引文MORGAN, R.P.C. Soil Erosion and Conservation.-- Ed.2. England: Longman, 1995.
MLA引文MORGAN, R.P.C. Soil Erosion and Conservation.-- Ed.2. Longman, 1995.
警告：这些引文格式不一定是100％准确.
APA引文