Prakash, S., & Prakash, S. (1981). Soil Dynamics Shamsher Prakash. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Prakash, Shamsher, agus Shamsher Prakash. Soil Dynamics Shamsher Prakash. McGraw-Hill, 1981.
Lua MLA (8ú heag.)Prakash, Shamsher, agus Shamsher Prakash. Soil Dynamics Shamsher Prakash. McGraw-Hill, 1981.
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