TY  - BOOK
AU  - Bureau of Indian Standards
TI  - Engineering Drawing Practice for Schools and Colleges (SP : 46 - 1988)
U1  - SP : 46 - 1988 
PY  - 1992///
CY  - New Delhi
PB  - Bureau of Indian Standards
KW  - Indian Standard - IT
N1  - SP : 46 - 1988
ER  -