Gaya APA

Keedy, M, L., Bittinger, M, L. (1986). A Problem-solving aproach to intermediate algebra (Ed. ke-2). Reading, MA: Addison Wesley.

Gaya MLA

Keedy, Mervin, L.., Bittinger, Mervin, L.. "A Problem-solving aproach to intermediate algebra". Ed. ke-2 Reading, MA: Addison Wesley, 1986. Text.