TY  - BOOK
AU  - Outerelo, Enrique and Ruiz , jesus M.
AU  - Ruiz , jesus M ; jt. auth.
TI  - Mapping degree theory  
T2  - Graduate studies in Mathematics 
SN  - 9780821887141
U1  - 515.72 
PY  - 2012///
CY  - Providence
PB  - American Mathematical Society
ER  -