Cita APA (7th ed.)
Aufmann, R. N., & Barker, V. C. (1995). Introductory algebra: An applied approach (4th ed.). Houghton Mifflin Co..
Cita Chicago (17th ed.)
Aufmann, Richard N., i Vernon C. Barker. Introductory Algebra: An Applied Approach. 4th ed. Boston: Houghton Mifflin Co., 1995.
Cita MLA (9th ed.)
Aufmann, Richard N., i Vernon C. Barker. Introductory Algebra: An Applied Approach. 4th ed. Houghton Mifflin Co., 1995.
Atenció: Aquestes cites poden no estar 100% correctes.