Lattices, semigroups, and universal algebra / 
edited by Jorge Almeida, Gabriela Bordalo, and Philip Dwinger. 
 - New York :  Plenum Press,  c1990. 
 - ix, 336 p. ; 
<br/><br/> "Proceedings of an international conference on lattices, semigroups, and universal algebra, held June 20-24, 1988, in Lisbon, Portugal"--T.p. verso. 
<br/><br/><label>ISBN: </label>0306434121 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lattice theory--Congresses.<br/>Semigroups--Congresses.<br/>Algebra, Universal--Congresses.
<br/><br/><label>Universal Decimal Class. No.: </label>512.56  / ALM