Elementary differential equations /
Earl David Rainville
- 3d ed.
- New York: Macmillan , [1964]
- xvi, 521 p. : illus.; 24 cm.
"Chapters 1-19 appear under the title: A short course in differentia l equations, third edition ... 1964 ... Some material ... is from The L aplace transform: an introduction ... 1963."