TY  - BOOK
ED  - Western Australia.
TI  - Trade calculations: sheetmetal work 
PY  - 1981///
CY  - Perth
PB  - Technical Publications Trust for the Technical Education Division, Education Department of Western Austra lia
KW  - Sheet-metal work x Mathematics
N1  - Cover title: Trade calculations : sheetmetal work : 1980
ER  -