TY  - BOOK
AU  - "Kreyszig, Erwin."
AU  - "Kreyszig, Herbert and Norminton, Edward J."
TI  - Advanced engineering mathematics
SN  - 9788126554232
U1  - 510 
PY  - 2011///
CY  - "Hoboken, N.J"
PB  - :Wiley
ER  -