Recommendations for symbols and other graphic conventions for building production drawings / 
British Standards Institution. 
 - 79 pages :  illustrations,   33cm. 
 - British standard ;  PD 6479 : 1976 .
 - British standard ;  PD 6479 : 1976 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Structural drawing--Standards.<br/>Signs and symbols--Standards.