TY  - BOOK
AU  - Martin, William
AU  - Reissner, Eric
TI  - Elementary Differential Equations
U1  - 517.38 MAR-REI 
PY  - 1964///
CY  - Massachusetts
PB  - Addison Wesley Publishers
KW  - Differential Equations
N1  - Includes Answers to Exercises and Index
ER  -