TY  - BOOK
TI  - 50 brain-teasers : for meetings, presentations and training sessions
SN  - 0-566-07979-8 (-X)
U1  - 658.3124 R54b 1998 
PB  - Gower Publishing Ltd.
KW  - Employees training of
N1  - 600 Technology (App Sciences)
ER  -