Gaya APA

Turk, L., Foth, H. (1972). Fundamentals of Soil Science, 5th Edition . New York: John Wiley and Sons, Inc..

Gaya MLA

Turk, L.M.., Foth, H.D.. "Fundamentals of Soil Science, 5th Edition". New York: John Wiley and Sons, Inc., 1972. Text.