Gaya APA

Steig, A, T, W, ;, C, L, J, ;, M, J. (1987). Intermediate algebra (ed. 2). California: WADSWORTH COMPANY.

Gaya MLA

Steig, Alden, T., Willis, ;, Carol, L., Johnston, ;, Mary, Jo. "Intermediate algebra". ed. 2 California: WADSWORTH COMPANY, 1987. Text.