TY  - BOOK
AU  - Creighton, R
AU  - Willex, Alfred B
TI  - Calculus of several variables
U1  - 517.9 
PY  - 1971///
CY  - Boston
PB  - Houghton
KW  - Differential equqtions
KW  - Partial differential equations
KW  - Functional equations
ER  -