Universal algebra and lattice theory  proceeding of the fourth International Conference held at Puebla, Mexico, 1982 
edited by R.S. Freese and O.C. Garcia 
 - Berlin  Springer-Verlag  1983 
 - 308p. 25cm 
 - Lecture notes in mathematics  no.1004 .
<br/><br/><label>ISBN: </label>87-12329-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra, Universal<br/>Lattice theory