Gaya APA

RAINVILLE, E, D., Bedient, P, E. (1969). ELEMENTARY DIFFERENTIAL EQUATIONS FOURTH EDITION (Fourth Edition). Collier-Macmillan Limited,Lond: MACMILLAN.

Gaya MLA

RAINVILLE, Earl, D.., Bedient, Philip, E.. "ELEMENTARY DIFFERENTIAL EQUATIONS FOURTH EDITION". Fourth Edition Collier-Macmillan Limited,Lond: MACMILLAN, 1969. Textbook.