Παραπομπή APA

Thomson, L., & Troeh, F. (1957). Soils and soil fertility (3.). Tata Mcgraw hill publishing company Ltd.

Παραπομπή Chicago Style

Thomson, L.M, και F.R Troeh. Soils and Soil Fertility. 3. New Delhi: Tata Mcgraw hill publishing company Ltd, 1957.

Παραπομπή MLA

Thomson, L.M, και F.R Troeh. Soils and Soil Fertility. 3. Tata Mcgraw hill publishing company Ltd, 1957.