TY  - BOOK
AU  - Blyth,T.S.
AU  - Robertson,E.F.
TI  - Sets and mappings
T2  - Essential Student Algebra; v.1
AV  -  QA171.48.B66 
PY  - 1986///
CY  - London
PB  - Chapman and Hall
KW  - Ordered sets
KW  - Functions,
KW  - Algebra
N1  - Includes index
ER  -