Clarke, David D. <br/><br/>
Action systems 

 - London  Methuen & Co. Ltd  1985 
 - 157  Pb 
<br/><br/><label>ISBN: </label>0-416-36130-7 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>150