TY  - BOOK
AU  - Brumfiel, Gregory W
TI  - Partially ordered rings and semi-algebraic geometry
SN  - 9780521228459
SN  - 80469087
U1  - 512.4 BRU 
PY  - 1979///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Categories (Mathematics)
KW  - Commutative rings
N1  - Includes index. Bibliography: p. 273-277
ER  -