Ryser Herbert John <br/><br/>
Combinatorial Mathematics 
Ryser Herbert John 
 -  1963 
 - Carus Mathematical Monographs, 14 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra
<br/><br/><label>Dewey Class. No.: </label>B217, K3