Dyfyniad APA
Whyte, W. S., & Paul, R. E. (1997). Basic Surveying (4th ed.). Spon Press.
Dyfyniad Arddull Chicago
Whyte, W. S., and R. E. Paul. Basic Surveying. 4th ed. New York: Spon Press, 1997.
Dyfyniad MLA
Whyte, W. S., and R. E. Paul. Basic Surveying. 4th ed. Spon Press, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.