Cita APA (7th ed.)
Sahoo, P. (2014). Engineering tribology. PHI Learning.
Cita Chicago (17th ed.)
Sahoo, Prasanta. Engineering Tribology. New Delhi: PHI Learning, 2014.
Cita MLA (9th ed.)
Sahoo, Prasanta. Engineering Tribology. PHI Learning, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.