Dyfyniad APA
Singh, G., Singh, G., & Chander, S. (2007). Civil engineering drawing. New Delhi.
Dyfyniad Arddull Chicago
Singh, Grucharan, Gurcharan Singh, and Subhash Chander. Civil Engineering Drawing. Standard: New Delhi, 2007.
Dyfyniad MLA
Singh, Grucharan, et al. Civil Engineering Drawing. New Delhi, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.