Dyfyniad APA

Som, P., & Ghosh, B. N. (1982). Advanced surveying. Tata McGraw-Hill.

Dyfyniad Arddull Chicago

Som, P., and B N. Ghosh. Advanced Surveying. New Delhi: Tata McGraw-Hill, 1982.

Dyfyniad MLA

Som, P., and B N. Ghosh. Advanced Surveying. Tata McGraw-Hill, 1982.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.