Dyfyniad APA

Gustafson,R. David, & Frisk, P. R. (1986). College algebra (3rd ed.). Brookes/Cole.

Dyfyniad Arddull Chicago

Gustafson,R. David, and Peter R. Frisk. College Algebra. 3rd ed. California: Brookes/Cole, 1986.

Dyfyniad MLA

Gustafson,R. David, and Peter R. Frisk. College Algebra. 3rd ed. Brookes/Cole, 1986.

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