Lua APA (7ú heag.)
Khurmi, R., & Gupta, J. (2013). Theory of machines (14th rev ed.). S. Chand & Company.
Lua i Stíl Chicago (17ú heag.)
Khurmi, R.S, agus J.K Gupta. Theory of Machines. 14th rev ed. Kolkata: S. Chand & Company, 2013.
Lua MLA (9ú heag.)
Khurmi, R.S, agus J.K Gupta. Theory of Machines. 14th rev ed. S. Chand & Company, 2013.
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