TY  - JOUR
AU  - G.B. Preston
TI  - Clifford, A.H. - An appreciation of his his work on the occasion of his sixty-fifth birthday.
JO  - Semigroup forum
PY  - 1974
SP  - 32
EP  - 57
VL  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1974__7_134000/
ID  - SF_1974__7_134000
ER  -