Cita APA (7th ed.)
Nagpal, G. (1999). Machine tool engineering. Khanna publications.
Cita Chicago (17th ed.)
Nagpal, G.R. Machine Tool Engineering. New Delhi: Khanna publications, 1999.
Cita MLA (9th ed.)
Nagpal, G.R. Machine Tool Engineering. Khanna publications, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.