TY  - BOOK
AU  - Ord H.
TI  - Engineering drawing and materials for mechanical engineering technicians
SN  - 0340192666
AV  - T 353 .O73 1971 
PY  - 1974///
CY  - London
PB  - English Universities Press, 
KW  - Mechanical drawing
KW  - Materials
KW  - Machinery
ER  -