TY  - BOOK
AU  - Heard,William Ernest
TI  - Multiple choice tests in technical drawing
SN  - 0333118383
U1  - 604.2076 23
PY  - 1972///.
CY  - London: 
PB  - Macmillan, 
KW  - Mechanical drawing
KW  - Problems, exercises, etc
ER  -