APA (7th ed.) Citation

Johnston, C. . L. (1985). Essential algebra (4th ed.). Wadsworth Pub. Co.

Chicago Style (17th ed.) Citation

Johnston, C L. Essential Algebra. 4th ed. Belmont, Calif: Wadsworth Pub. Co, 1985.

MLA (9th ed.) Citation

Johnston, C L. Essential Algebra. 4th ed. Wadsworth Pub. Co, 1985.