Mechanical engineering 

 - Geneva  League of Nations       1927 
 -  vol.1; 193p .
<br/><br/> Economic and financial 
<br/><br/><label>Standard No.: </label>187558 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"D6.1.N27, F7.1"