Cita APA (7th ed.)
Singh, G., & Chander, S. (1997). Civil engineering drawing (7th ed.). Standard Publisher.
Cita Chicago (17th ed.)
Singh, Gurcharan, i Subhash Chander. Civil Engineering Drawing. 7th ed. New Delhi: Standard Publisher, 1997.
Cita MLA (9th ed.)
Singh, Gurcharan, i Subhash Chander. Civil Engineering Drawing. 7th ed. Standard Publisher, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.