Elementary differential equations / Earl D. Rainville [and] Phillip E. Bedient. Rainville, Earl David, 1907- Bedient, Phillip Edward, 1922- joint author. Differential equations. QA371 .R29 1974 517.38 RAE "Chapters 1 through 16 of this book [also] appear separately as A short course in differential equations, 5th ed." Includes index. New York : Macmillan, c1974. c1974. 1973 Text xiii, 511 p. : eng