Dyfyniad APA
Barnett, R. A., & Ziegler, M. R. (1993). College algebra (5th ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Barnett, Raymond A., and Michael R. Ziegler. College Algebra. 5th ed. New York: McGraw-Hill, 1993.
Dyfyniad MLA
Barnett, Raymond A., and Michael R. Ziegler. College Algebra. 5th ed. McGraw-Hill, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.