Trade calculations :  sheetmetal work :  a C. R. & D. project 

 - Perth :  Technical Publications Trust for the Technical Education Division, Education Department of Western Austra lia,  1981 
 - 1 v. 
<br/><br/>Cover title: Trade calculations : sheetmetal work : 1980 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sheet-metal work x Mathematics