Hoffmann, L. D., & Bradley, G. L. (2007). Calculus: For business, economics, and the social and life sciences (brief 9th ed.). McGraw Hill Higher Education.
Chicago-referens (17:e uppl.)Hoffmann, Laurence D.,|d1943-, och Gerald L. Bradley. Calculus: For Business, Economics, and the Social and Life Sciences. brief 9th ed. Boston: McGraw Hill Higher Education, 2007.
MLA-referens (9:e uppl.)Hoffmann, Laurence D.,|d1943-, och Gerald L. Bradley. Calculus: For Business, Economics, and the Social and Life Sciences. brief 9th ed. McGraw Hill Higher Education, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.