APA Edition Citation

Green land, D. J., & Lal, R. (1979). Soil physical properties and crop production in the tropic. John Wiley & Sons INC.

Chicago Edition Citation

Green land, D J., and R. Lal. Soil Physical Properties and Crop Production in the Tropic. Chichester: John Wiley & Sons INC, 1979.

MLA Edition Citation

Green land, D J., and R. Lal. Soil Physical Properties and Crop Production in the Tropic. John Wiley & Sons INC, 1979.