Harper, John R.,  1941- <br/><br/>
Secondary cohomology operations / 
John R. Harper 
 - xi, 268 páginas ; 
 - Graduate studies in mathematics,  v. 49 .
 - Graduate studies in mathematics .
<br/><br/><label>ISBN: </label>0821831984 (papel libre de acido) 0-8218-3270-0 (rustica) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teoría homológica
<br/><br/><label>LC Class. No.: </label>QA612.3  / H35 
<br/><br/><label>Dewey Class. No.: </label>514/.23