TY  - BOOK
AU  - Shukla,Prakash
TI  - Teach yourself how things function: a ready guide to gadgets and machines volume 1/by Prakash Shukla
SN  - 812160012x
U1  - 771.3  S91H 
PY  - 1987///
CY  - Delhi
PB  - Hind pocket book (P) ltd
ER  -