TY  - BOOK
AU  - John R. Harper
TI  - Secondary cohomology operations
T2  - Graduate studies in mathematics, Vol. 49
SN  - 9780821832707 (PB)
U1  - 514.23 HAR(SEC) 
PY  - 2002///
PB  - American Mathematical Society
KW  - Homology theory
ER  -