TY  - BOOK
AU  - Williams, Ivor
TI  - English for science & engineering
SN  - 10: 1-4130-2053-4.
U1  - Circ.428 W723e 2007 
PY  - 2007///
CY  - Boston
PB  - Thomson ELT
KW  - 1.English language-Study and teaching
ER  -