TY  - BOOK
AU  - Edwards,C.Henry (Charles Henry),Penney,David E.
TI  - Elementary Differential Equations with Boundary Value Problems 
SN  -  9789353432782
U1  - 515.35 EDW 
PY  - 2019///
PB  - Pearson 
UR  - http://www.amazon.com/exec/obidos/ASIN/B007ELL46C/chopaconline-20
ER  -