Cita APA (7th ed.)
Barnett, R. A., & Kearns, T. J. (1990). Elementary algebra: Structure and use (5th ed.). McGraw-Hill Pub. Co..
Cita Chicago (17th ed.)
Barnett, Raymond A., i Thomas J. Kearns. Elementary Algebra: Structure and Use. 5th ed. New York: McGraw-Hill Pub. Co., 1990.
Cita MLA (9th ed.)
Barnett, Raymond A., i Thomas J. Kearns. Elementary Algebra: Structure and Use. 5th ed. McGraw-Hill Pub. Co., 1990.
Atenció: Aquestes cites poden no estar 100% correctes.