TY  - BOOK
AU  - Edwards,Henry C.
AU  - Penney, David E. 
AU  - Calvis, David.
TI  - Elementary differential equations and boundary value problems
SN  - 9789353432782
U1  - 515.35 EDW 
PY  - 2019///
CY  - New Delhi
PB  - Pearson
KW  - Differential equations
KW  - Boundary value problems
N1  - Includes bibliographical references and index
ER  -