Bureau of Indian Standard <br/><br/>
SI : 4 1941  Functional requirement for elctric motor sirens part 1 

 - 1st 
 - New Delhi  Bureau of Indian Standard  1976 
 - 4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Architecture
<br/><br/><label>Dewey Class. No.: </label>621.3  / BU-I