APA引文

Spaan, W. P. (1979). Course instruction: Soil conservation and erosion control. Wageningen: Wageningen Agricultural Univ.

Trích dẫn kiểu Chicago

Spaan, W. P. Course Instruction: Soil Conservation and Erosion Control. Wageningen: Wageningen Agricultural Univ, 1979.

MLA引文

Spaan, W. P. Course Instruction: Soil Conservation and Erosion Control. Wageningen: Wageningen Agricultural Univ, 1979.

警告：這些引文格式不一定是100％准確.