Gaya APA

BRADY, N, C, ;, W, R, R. (2008). The Nature and Properties of Soils. Fourteenth Edition revised . : Pearson Education International, Prentice Hall,.

Gaya MLA

BRADY, Nyle, C., ;, WEIL,, Ray, R.. "The Nature and Properties of Soils. Fourteenth Edition revised". : Pearson Education International, Prentice Hall,, 2008. Buku.