TY  - BOOK
AU  - Ford,Lester R., x
AU  - x
TI  - Differenctial equations: x
SN  - x
U1  - 517.38/FOD 
PY  - 1955///
CY  - N.Y.
PB  - McGraw - Hill
KW  - Equations
N1  - x
ER  -