APA (7e ed.) Bronvermelding
Zill, D. G., & Cullen, M. R. (1997). Differential equations with boundary-value problems (4th ed.). Brooks/Cole Pub. Co..
Chicago (17e ed.) Bronvermelding
Zill, Dennis G., en Michael R. Cullen. Differential Equations with Boundary-value Problems. 4th ed. Pacific Grove: Brooks/Cole Pub. Co., 1997.
MLA (9e ed.) Bronvermelding
Zill, Dennis G., en Michael R. Cullen. Differential Equations with Boundary-value Problems. 4th ed. Brooks/Cole Pub. Co., 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.