Strooker,Jan R. <br/><br/>
Introduction to Categories, Homological Algebra and Sheaf Cohomology 
/ by Jan R. Strooker 
 - london  cambridge university press  1978 
 - ix,245p. 
<br/><br/><label>ISBN: </label>0521216990 
<br/><br/><label>Dewey Class. No.: </label>512.55  / STR/I