TY  - BOOK
AU  - lambek, Joachim.
TI  - Torsion theories, additive semantics and rings of quotients
T2  - Lecture Notes in mathematics 177
SN  - 3540053409
U1  - 512.4 
PY  - 1971///
CY  - Berlin
PB  - Springer-Verlag
ER  -