Riker, William H. <br/><br/>
An introduction to positive political theory / 
by william H Riker and Peter C Ordeshook. 
 - New Jersey :  Prentice hall,  1973. 
 - 387 p. 
<br/><br/><label>ISBN: </label>0134930649 
<br/><br/><label>Subjects--Topical Terms: </label><br/>political science
<br/><br/><label>Dewey Class. No.: </label>320.011  / RIK.I