Public library systems in the United States  a survey of multijurisdictional systems 
by Nelson Associates for the Public Library Association, American Library Association 
 - Chicago, Ill.  American Library Association  1969 
 - xvi, 368 p. : forms, maps. ; 25 cm. 
<br/><br/> Prepared for the Public Library Association. 
<br/><br/><label>LCCN: </label>68-054708 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public libraries--United States