TY  - BOOK
AU  - Johnson,C.M
AU  - Johnson,D.
TI  - General engineering
SN  - 0132802805
U1  - 420 
PY  - 1992///
CY  - New York
PB  - Prentice Hall
KW  - English language
KW  - Study and teaching
KW  - Foreign speakers
ER  -