TY  - BOOK
AU  - Edwards, David A.
AU  - Hastings, Harold M.
TI  - Cech and Steenrod homotopy: ; theories with application ot Geometric topology 
T2  - Lecture notes in Mathematics
U1  - 514 
PY  - 1976///
CY  - Berlin
PB  - Springer-Verlag
ER  -