TY  - BOOK
AU  - Roy,Sankar Prosad
AU  - 
TI  - Introduction to engineering ; 
U1  - 620/SAI      
PY  - 0000///Academic Pub
PY  - 1974///
CY  - Calcutta.
KW  - Engineering
KW  - engineering.
N1  - Includes index and Bibliography and Glossasry
ER  -