Crawley, Peter. <br/><br/>
Algebraic theory of lattices   
by Peter Crawley and Robert P. Dilworth. 
 - Englewood Cliffs  Prentice-Hall  1973 
 - vi, 201p. 
<br/><br/><label>ISBN: </label>013022690 
<br/><br/><label>Dewey Class. No.: </label>512.7  / N732