TY  - BOOK
AU  - Spiegel, Murray R. 
TI  - Theory and problems of vector analysis: including 480 sloved problems 
SN  - 0070990093
AV  - 3713 
U1  - 515.63 22
PY  - 1974///.
CY  - New York, 
PB  - McGraw Hill
ER  -