TY  - BOOK
AU  - Wilkinson,J.K.
ED  - Cassell 
TI  - Technical drawing comprehension exercises
SN  - 0304296538
U1  - 604.2076 23
PY  - 1976///.
CY  - London: 
PB  - Cassell, 
KW  - Mechanical drawing
KW  - Problems, exercises, etc
ER  -