Cita APA (7a ed.)

Dugopolski, M., & Mark Dogopolski. (2012). Algebra: For college students (6th ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Dugopolski, Mark, y Mark Dogopolski. Algebra: For College Students. 6th ed. New York: McGraw-Hill, 2012.

Cita MLA (9a ed.)

Dugopolski, Mark, y Mark Dogopolski. Algebra: For College Students. 6th ed. McGraw-Hill, 2012.