Cita APA (7th ed.)
Koelle, R., & Confort, P. (1996). Elementary algebra: A cumulative approach (PWS PaceSetter ed.). PWS Pub. Co..
Cita Chicago (17th ed.)
Koelle, Ruth, i Patricia Confort. Elementary Algebra: A Cumulative Approach. PWS PaceSetter ed. Boston: PWS Pub. Co., 1996.
Cita MLA (9th ed.)
Koelle, Ruth, i Patricia Confort. Elementary Algebra: A Cumulative Approach. PWS PaceSetter ed. PWS Pub. Co., 1996.
Atenció: Aquestes cites poden no estar 100% correctes.