TY  - BOOK
AU  - Wilfred Kaplan
TI  - Elements of differential equations
U1  - 517.38 
PY  - 1964///
CY  - Reading
PB  - Addison Wesley
N1  - Wilfred Kaplan: Elements of differential equations.  Reading.  Addison Wesley, 1964.--(517.38KAP)
ER  -