Gaya APA

Gupta, P, N., Poonia, M, P. (2003). Elements of mechanical engineering (Ed.4). New Delhi: Standard Publishersd Distributors.

Gaya MLA

Gupta, P., N.., Poonia, M., P.. "Elements of mechanical engineering". Ed.4 New Delhi: Standard Publishersd Distributors, 2003. Text.