TY  - GEN
AU  - Petrich,Mario
TI  - Categories of algebraic systems: vector and projective spaces, semigroups, rings, and lattices
T2  - Lecture notes in mathematics
SN  - 038707998X
PY  - 1976///
CY  - Berlin, New York
PB  - Springer-Verlag
KW  - Algebra, Abstract
KW  - Categories (Mathematics)
N1  - Cuprinde bibliografie si index
ER  -