Elder John <br/><br/>
GeREFmal systems 
Elder John 
 - London  Academic Press          1981 
 - 508p.  cm. 
<br/><br/><label>Standard No.: </label>44750 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>H:(C4), M1