TY  - DATA
AU  - Clifford, A. H.
AU  - Preston, G. B.,
TI  - The algebraic theory of semigroups,
T2  - Mathematical Surveys and Monographs, 
SN  - 9781470412340 (online)
PY  - 1961///-
CY  - Providence
PB  - American Mathematical Society
KW  - Semigroups
N1  - Includes bibliographies
UR  - https://doi.org/http://dx.doi.org/10.1090/surv/007.1
ER  -