The elements of structure 
Morgans W. 
 - 2nd ed. 
 - London  Pitman books limited  1964 
 - 252p. 
<br/><br/><label>ISBN: </label>0-273-01079-4 
<br/><br/><label>Subjects--Topical Terms: </label>--School of Engineering and Technology
<br/><br/><label>LC Class. No.: </label>TA633  / .M6 1964