Edgar E Enochs <br/><br/>
Relative homological algebra- vol.1 

 - Berlin  DeGruyter  2011 
<br/><br/><label>ISBN: </label>9783110215205 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra
<br/><br/><label>Dewey Class. No.: </label>512  / ENO.R.1