TY  - BOOK
AU  - Black , H.P
AU  - JR O.E.A
TI  - Machine design
SN  - 6789OKPKP754
U1  - 621.7 
PY  - 1955///
CY  - America
PB  - McGRAW
KW  - Engineering drawing
KW  - Engineering design
ER  -