TY  - BOOK
AU  - Derrick,William R.
AU  - Grossman,Stanley I
TI  - Introduction to differential equations: with boundary value problems 
SN  - 0314268979
PY  - 1987///
CY  - St. Paul
PB  - West Pub. Co.
KW  - Differential equations
KW  - Boundary value problems
N1  - Rev ed. of : Elemantary differential equations with applications; Include bibliographical references and index
ER  -