APA (7th ed.) Citation

Johnston, C. L., Willis, A. T., & Lazaris, J. (1994). Essential algebra (7th ed.). PWS.

Chicago Style (17th ed.) Citation

Johnston, C. L., Alden T. Willis, and Jeanne Lazaris. Essential Algebra. 7th ed. Boston: PWS, 1994.

MLA (9th ed.) Citation

Johnston, C. L., et al. Essential Algebra. 7th ed. PWS, 1994.