Dyfyniad APA

Bach, D. J., & Leitner, P. J. (2006). Prealgebra: Mathematics for a variable world (3rd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Bach, Daniel J., and Patricia J. Leitner. Prealgebra: Mathematics for a Variable World. 3rd ed. Boston: McGraw-Hill, 2006.

Dyfyniad MLA

Bach, Daniel J., and Patricia J. Leitner. Prealgebra: Mathematics for a Variable World. 3rd ed. McGraw-Hill, 2006.

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