APA

Dhawan R. K., . (2010). Engineering Graphics. New Delhi: S. Chand & Company LTD.

Chicago

Dhawan R K, . 2010. Engineering Graphics. New Delhi: S. Chand & Company LTD.

Harvard

Dhawan R. K., . (2010). Engineering Graphics. New Delhi: S. Chand & Company LTD.

MLA

Dhawan R K, . Engineering Graphics. New Delhi: S. Chand & Company LTD. 2010.