TY  - BOOK
AU  - Croom Fred H
TI  - Basic concepts of algebraic topology
T2  - Undergraduate texts in mathematics
SN  - 3540902880 (hbd)
U1  - B2-316, L8-;1 
PY  - 1978///
CY  - New York    
PB  -  Springer-Verlag        
KW  - Mathematics
N1  - Appendix 1-3, 155-168p
ER  -