Gaya APA

Barrato, S., Bargman, B. (2008). Elementary & intermediate algebra : a unified approacah. Third edition (Ed.3). Boston Burr Ridge...: Mc Graw hill.

Gaya MLA

Barrato, Stefan., Bargman, Barry. "Elementary & intermediate algebra : a unified approacah. Third edition". Ed.3 Boston Burr Ridge...: Mc Graw hill, 2008. Text.