Hughes D R <br/><br/>
Design theory 

 - Cambridge  University Press          1985 
 - viii, 240p.  cm. 
<br/><br/><label>Standard No.: </label>40237 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Combination<br/>Permutation
<br/><br/><label>Dewey Class. No.: </label>B217, M5