Dyfyniad APA
Punmia, B. C., & Jain, A. K. (1994). Surveying: A textbook on surveying and levelling (13th ed.). Laxmi Pub.
Dyfyniad Arddull Chicago
Punmia, B. C., and Ashok Kumar/Jain Jain. Surveying: A Textbook on Surveying and Levelling. 13th ed. New Delhi: Laxmi Pub, 1994.
Dyfyniad MLA
Punmia, B. C., and Ashok Kumar/Jain Jain. Surveying: A Textbook on Surveying and Levelling. 13th ed. Laxmi Pub, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.