Styl cytowania APA

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

Styl cytowania Chicago

Green land, D.J, i R. Lal. Soil Physical Properties and Crop Production in the Tropics. New York: John Wiley and Sons, 1979.

Styl cytowania MLA

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