TY  - BOOK
AU  - Wilcox, L. R. 
TI  - Elementary differential equations / 
AV  - QA371 .R29
U1  - 517.2 
PY  - 1961///
CY  - Pennsyluania : 
PB  - Int. textbook com. 
KW  - Differential equations
N1  - Includes Index
ER  -