JOHNSON, R. E., FOERSTER, P. A., & JOHNSON, C. G. (1977). Algebra: The language of mathematics book 2. Addison-wesley.
Cita Chicago (17th ed.)JOHNSON, Richard E., Paul A. FOERSTER, i Cheryl G. JOHNSON. Algebra: The Language of Mathematics Book 2. California: Addison-wesley, 1977.
Cita MLA (9th ed.)JOHNSON, Richard E., et al. Algebra: The Language of Mathematics Book 2. Addison-wesley, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.