Proceedings of the conference on Urban data management2-5 April. 

 - London  PTRC         1968 
 - 179p.  cm. 
<br/><br/><label>Standard No.: </label>172405 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X62:8p56124,N68, K8"