Khanna O P. Industrial engineering and Management. Dhanpat Rai.
Cita Chicago (17th ed.)Khanna O P. Industrial Engineering and Management. New Delhi: Dhanpat Rai.
Cita MLA (9th ed.)Khanna O P. Industrial Engineering and Management. Dhanpat Rai.
Atenció: Aquestes cites poden no estar 100% correctes.