Johns, Ada Winifred. <br/><br/>
Special libraries: development of the concept, their organizations, and their services. 

 - Metuchen, N.J.,  Scarecrow Press,  1968. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>68012628 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Special libraries.<br/>Engineering libraries.
<br/><br/><label>LC Class. No.: </label>Z675.A2  / J57 
<br/><br/><label>Dewey Class. No.: </label>026