TY  - GEN
AU  - Derrick, W.R.
AU  - Grossman, S.I.
TI  - Elementary defferential equations with applications: a short course
SN  - 0201014726
U1  - 515.35 
PY  - 1978///
CY  - London
PB  - addison Wesley
KW  - Analysis
ER  -