APA Citation

Keen, B. A. (1931). The physical properties of the soil. London: Longmans, Green and Co..

Chicago Style Citation

Keen, Bernard A. The Physical Properties of the Soil. London: Longmans, Green and Co., 1931.

MLA Citation

Keen, Bernard A. The Physical Properties of the Soil. London: Longmans, Green and Co., 1931.

Warning: These citations may not always be 100% accurate.