Dugopolski, M. (2004). Intermediate algebra (Fourth edition.). McGraw-Hill Higher Education.
Citazione stile Chigago Style (17a edizione)Dugopolski, Mark. Intermediate Algebra. Fourth edition. Boston: McGraw-Hill Higher Education, 2004.
Citatione MLA (8a ed.)Dugopolski, Mark. Intermediate Algebra. Fourth edition. McGraw-Hill Higher Education, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.