Bach, D. J. (2006). Prealgebra: Mathematics for a variable world. Boston: McGraw-Hill.
Čikaški stil citiranjaBach, Daniel J. Prealgebra: Mathematics for a Variable World. Boston: McGraw-Hill, 2006.
MLA način citiranjaBach, Daniel J. Prealgebra: Mathematics for a Variable World. Boston: McGraw-Hill, 2006.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.