Prakash, S. (1981). Engineering Soil Testing / Shamsher Prakash And Purushottam Kumar Jain. Nem Chand.
Chicago-referens (17:e uppl.)Prakash, Shamsher. Engineering Soil Testing / Shamsher Prakash And Purushottam Kumar Jain. Nem Chand, 1981.
MLA-referens (8:e uppl.)Prakash, Shamsher. Engineering Soil Testing / Shamsher Prakash And Purushottam Kumar Jain. Nem Chand, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.