TY  - BOOK
AU  - Stephenson G
TI  - Introduction to partial differential equations forscience students
SN  - 0 582 44430 6
U1  - B334, L0 
PY  - 1970///
CY  - London
PB  - Longman          
KW  - Equations
N1  - Bibliography: P 147
ER  -