UNESCO Au. <br/><br/>
History of mankind    Culture and scientific development. 
UNESCO Au. 
 - USA  UNESCO         1963 
<br/><br/><label>Standard No.: </label>120893 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>Y:1'N<-A, K3.1-.6  RR