Berman, Gerald. <br/><br/>
Introduction to combinatories 

 - New York :  Academic Press,  1970 
 - 300 p. 
<br/><br/><label>LCCN: </label>15350 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Combinaciones.
<br/><br/><label>Dewey Class. No.: </label>511.64  / B4