Gaya APA

W, F, R., Jur, F, C. (1941). The Encyclopedia Of Soil Science Part 1 . Amerika: Dowden, Hutchingon & Ross.

Gaya MLA

W, Fairbridge, Rhodes., Jur, Finkl, Charles. "The Encyclopedia Of Soil Science Part 1". Amerika: Dowden, Hutchingon & Ross, 1941. Text.