TY  - BOOK
AU  - Berg, Paul W.,
AU  - Mcgregor, James L.
TI  - Elementary partial differential equations
T2  - Holden-day series in mathematics
AV  - QA374 B47
PY  - 1966///
CY  - San francisco
PB  - Holden-day
KW  - Ecuaciones diferenciales parciales
ER  -