Gratzer, George A. <br/><br/>
Lattice theory :  first concepts and distributive lattices / 
George A. George 
 - San Francisco :  W. H. Freeman,  c1971. 
 - xv, 212 p. :  illus. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. [193]-205. 
<br/><br/><label>ISBN: </label>0716704420 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lattice theory.<br/>Lattices, Distributive.
<br/><br/><label>Dewey Class. No.: </label>512.7  / GRL 1971