Dyfyniad APA
Sears, F. W., & Zemansky, M. W. (1970). University Physics (4th ed.). Addison-Wesley.
Dyfyniad Arddull Chicago
Sears, Francis W., and Mark W. Zemansky. University Physics. 4th ed. London: Addison-Wesley, 1970.
Dyfyniad MLA
Sears, Francis W., and Mark W. Zemansky. University Physics. 4th ed. Addison-Wesley, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.