Lang, S. (2001). Algebra (3rd ed.). Pearson Education.
Cita Chicago (17th ed.)Lang, Serge. Algebra. 3rd ed. Delhi: Pearson Education, 2001.
Cita MLA (9th ed.)Lang, Serge. Algebra. 3rd ed. Pearson Education, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.