Gaya APA

Keedy, M, L., Bittinger, M, L. (1986). A problem-solving approach to intermediate algebra (2nd ed). Massachusetts: Addison Wesley Publishing.

Gaya MLA

Keedy, Mervin, L.., Bittinger, Marvin, L.. "A problem-solving approach to intermediate algebra". 2nd ed Massachusetts: Addison Wesley Publishing, 1986. Printed Book.