Gaya APA

Keedy, M, L. et al (1986). Problem - Solving Approach to Intermediate Algebra Second Edition (Ed.2). Massachusetts: Addison-Wesley Publishing Co.

Gaya MLA

Keedy, Mervin, L.. et al. "Problem - Solving Approach to Intermediate Algebra Second Edition". Ed.2 Massachusetts: Addison-Wesley Publishing Co, 1986. Text.