TY  - GEN
AU  - Mac Lane, Saunders
TI  - Categories for the working mathematician
SN  - 9780387984032
U1  - 512.55 
PY  - 1998///
CY  - USA
PB  - Springer
N1  - I. categories, functors and natural transformations
II. Construction on categories
III. Universals and limits
ER  -