VAN PRAAG B M S <br/><br/>
Optimal packing systems. 

 - Netherlands  NSEI         1968 
 - v.p.  cm. 
<br/><br/><label>Standard No.: </label>184327 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X.N68, K8"