Martin-Gay, K. E. (1997). Beginning algebra (2nd ed.). Prentice-hall.
Cita Chicago (17th ed.)Martin-Gay, K. Elayn. Beginning Algebra. 2nd ed. New Jersey: Prentice-hall, 1997.
Cita MLA (9th ed.)Martin-Gay, K. Elayn. Beginning Algebra. 2nd ed. Prentice-hall, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.