APA استشهاد

Foth, H., & Thurk, L. (1972). Fundamentals of soil science (5th ed.). Wiley Eastern.

استشهاد بنمط شيكاغو

Foth, H.D, و L.M Thurk. Fundamentals of Soil Science. 5th ed. New Delhi: Wiley Eastern, 1972.

MLA استشهاد

Foth, H.D, و L.M Thurk. Fundamentals of Soil Science. 5th ed. Wiley Eastern, 1972.