Leech, Jonathan, <br/><br/>
Two papers :  H-coextensions of monoids; and, The structure of a band of groups / 
Jonathan Leech. 
 - 1 online resource (107 pages) :  illustrations. 
 - Memoirs of the American Mathematical Society ;  volume 1, issue 2, number 157 (March 1975) .
 - Memoirs of the American Mathematical Society ;  number 157. .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9781470405434 (e-book) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Monoids.<br/>Semigroups.<br/>Group extensions (Mathematics)
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>QA169  / .L44 1975