Cita APA (7th ed.)
Bhattacharyya, B., & Bera, S. C. (2009). Engineering graphics. I. K. International Pub.
Cita Chicago (17th ed.)
Bhattacharyya, B., i S. C. Bera. Engineering Graphics. New Delhi: I. K. International Pub, 2009.
Cita MLA (9th ed.)
Bhattacharyya, B., i S. C. Bera. Engineering Graphics. I. K. International Pub, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.