BOYCE WILLIAM E. (2001). ELEMENTARY DIFFERENTIAL EQUATIONS AND BOUNDARY VALUE PROBLEMS 7TH ED (7TH ED.). JOHN WILEY & SONS, INC.
Chicago-referens (17:e uppl.)BOYCE WILLIAM E. ELEMENTARY DIFFERENTIAL EQUATIONS AND BOUNDARY VALUE PROBLEMS 7TH ED. 7TH ED. NEW YORK: JOHN WILEY & SONS, INC, 2001.
MLA-referens (9:e uppl.)BOYCE WILLIAM E. ELEMENTARY DIFFERENTIAL EQUATIONS AND BOUNDARY VALUE PROBLEMS 7TH ED. 7TH ED. JOHN WILEY & SONS, INC, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.