TY  - BOOK
AU  - RYDER,G H
AU  - BENNETT,M.D.
TI  - MACHANICS OF MACHINES / 
U1  - 620 
PY  - 1990///
CY  - [S.N] : 
PB  - ENGLISH HAGUAGE BOOK SOCIETY MACMHLAN ، 
KW  - MACHINES
KW  - MECHANICS
ER  -