Waters, S. J.  <br/><br/>
Systems documentation / 
S.J. Waters. 
 - Manchester :  NCC Publications,  1979. 
 - 113 p. :  ill. ;  21 cm. 
<br/><br/> Cover title: Systems specifications. 
<br/><br/><label>ISBN: </label>0850121884 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information storage and retrieval systems.<br/>Electronic data processing.