Gaya APA

al., E. et al (1986,1981,2012). Intermediate Algebra (Ed. 1). New York: Harcourt Brace Jovanovich.

Gaya MLA

al., Et. et al. "Intermediate Algebra". Ed. 1 New York: Harcourt Brace Jovanovich, 1986,1981,2012. Text.