Cita APA (7th ed.)
Singh, G., Singh, G., & Chander, S. (2007). Civil engineering drawing. New Delhi.
Cita Chicago (17th ed.)
Singh, Grucharan, Gurcharan Singh, i Subhash Chander. Civil Engineering Drawing. Standard: New Delhi, 2007.
Cita MLA (9th ed.)
Singh, Grucharan, et al. Civil Engineering Drawing. New Delhi, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.