Marshall, W.T Nelson, H.M <br/><br/>
Structures si units 

 - 2ND 
 - BRITAINIA  PITMAN  1977 
 - 460P 
<br/><br/><label>ISBN: </label>0-273-00827-7 
<br/><br/><label>Dewey Class. No.: </label>624.1 MAR