TY  - BOOK
AU  - Croom,Fred H.
TI  - Basic concepts of algebraic topology
T2  - Undergraduate texts in mathematics
SN  - 0387902880
U1  - 514.2 CRO/B 
PY  - 1978///
CY  - New York
PB  - Springer-Verlag
KW  - Algebraic topology
N1  - Includes index; Bibliography: p. 169-171
ER  -