Cita APA (7th ed.)
Varghese, P. (2013). Engineering graphics. McGraw Hill Education (I) Pvt.Ltd.
Cita Chicago (17th ed.)
Varghese, P.I. Engineering Graphics. New Delhi: McGraw Hill Education (I) Pvt.Ltd, 2013.
Cita MLA (9th ed.)
Varghese, P.I. Engineering Graphics. McGraw Hill Education (I) Pvt.Ltd, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.