Department of scientific and industrial research:   Revised to October, 1956 
/ H. M. Stationery Office 
 - London:   H. M. Stationery Office,   1956 
 - 36p. 
 - Sectional list no.   3 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Great Britain
<br/><br/><label>Universal Decimal Class. No.: </label>R 019:5/6(410)  / J6