TY  - BOOK
AU  - Powers,David L.
TI  - Boundary value problems
SN  - 0125637608
U1  - 515.35 23
PY  - 1972/// [reprinted 1979]
CY  - New York
PB  - Academic Press
KW  - Boundary value problems
KW  - Differential equations, Partial
N1  - Includes Bibliography and  index
ER  -