Cita APA (7th ed.)
Hutchison, D., Bergman, B., & Hoelzle, L. F. (2004). Elementary and intermediate algebra: A unified approach. McGraw-Hill Higher Education.
Cita Chicago (17th ed.)
Hutchison, Donald, Barry Bergman, i Louis F. Hoelzle. Elementary and Intermediate Algebra: A Unified Approach. Boston: McGraw-Hill Higher Education, 2004.
Cita MLA (9th ed.)
Hutchison, Donald, et al. Elementary and Intermediate Algebra: A Unified Approach. McGraw-Hill Higher Education, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.