Dyfyniad APA
Basu, S., & Sengupta, S. (2012). Fundamentals of tribology. PHI Learning.
Dyfyniad Arddull Chicago
Basu, S.K, and S.N/Ahuja Sengupta. Fundamentals of Tribology. New Delhi: PHI Learning, 2012.
Dyfyniad MLA
Basu, S.K, and S.N/Ahuja Sengupta. Fundamentals of Tribology. PHI Learning, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.