Open University <br/><br/>
Open university: Systerms management 
Open University 
 - Walton  Hall The Open University        1975 
 - 43p.  cm. 
<br/><br/><label>Standard No.: </label>31334 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D65,8(B)obX:89M, L5