Gaya APA

Sanchez, P, A. (1976). Properties And Management Of Soils In The Tropics (Ed.1, Jlh. Eksp=1). America: John Wiley & Sons, Inc..

Gaya MLA

Sanchez, Pedro, A.. "Properties And Management Of Soils In The Tropics". Ed.1, Jlh. Eksp=1 America: John Wiley & Sons, Inc., 1976. Text.