Mchale,John <br/><br/>
Changing information environment 
by John Mchale 
 - London:  Paul  Elek,  c1976 
 - 117p.:tables.graphs.  23cm. 
<br/><br/><label>ISBN: </label>0236400525 
<br/><br/><label>Dewey Class. No.: </label>301.243  / Mac