Gabriel, Peter <br/><br/>
Calculus of fractions and homotopy theory / 
Peter Gabriel, M. Zisman  
 - New York  Springer Verlag  1967 
 - x, 168 pages,  23 cm. 
<br/><br/> €79.99<br/>TB2818 
<br/><br/><label>ISBN: </label>9783642858468 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Homotopy theory<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>513.83 GAB