APA (7th ed.) Citation

Sen, G. C. Principles of machine tools / by G.C. Sen and A. Bhattacharyya.

Chicago Style (17th ed.) Citation

Sen, Gopal Chandra. Principles of Machine Tools / by G.C. Sen and A. Bhattacharyya. Calcutta : Central Book Agency, 1965-67.

MLA (8th ed.) Citation

Sen, Gopal Chandra. Principles of Machine Tools / by G.C. Sen and A. Bhattacharyya.