Singh, A., & Chowdhary G.R. (2007). Soil engineering: In theory and practice (2nd ed.). CBS publishers & distributors.
Παραπομπή Chicago StyleSingh, Alam, και Chowdhary G.R. Soil Engineering: In Theory and Practice. 2nd ed. New Delhi: CBS publishers & distributors, 2007.
Παραπομπή MLASingh, Alam, και Chowdhary G.R. Soil Engineering: In Theory and Practice. 2nd ed. CBS publishers & distributors, 2007.
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