Petrich, Mario <br/><br/>
Categories of algebraic systems  vector and projective spaces, semigroups, rings, and lattices 
Mario Petrich 
 - Berlin  New York  Springer-Verlag  1976 
 - viii, 217 p  ill  25 cm 
 - Lecture notes in mathematics  553 .
<br/><br/> Cuprinde bibliografie si index 
<br/><br/><label>ISBN: </label>038707998X 
<br/><br/><label>LCCN: </label>76053511 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra, Abstract<br/>Categories (Mathematics)