Dyfyniad APA
Goldstein, L. J., & Lay, D. I. (1993). Brief calculus and its applications (6th ed.). Prentice hall.
Dyfyniad Arddull Chicago
Goldstein, Larry J., and David I. Lay. Brief Calculus and Its Applications. 6th ed. New Jersey: Prentice hall, 1993.
Dyfyniad MLA
Goldstein, Larry J., and David I. Lay. Brief Calculus and Its Applications. 6th ed. Prentice hall, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.