TY  - BOOK
AU  - Hilton Peter J Ed.
ED  - Symposium on algebaric (1971 : Seattle)
TI  - Proceeding on algebraic topology
T2  - Lecture notes in mathematics; 249
U1  - B31p1,N71, L1 
PY  - 1971///
CY  - Berlin
PB  - Springer-Verlag         
ER  -