TY  - BOOK
AU  - Fortescue, Michael D..
TI  - Discourse Production Model for Twenty Questions / 
SN  - 90 272 2505 2
U1  - S22 
PY  - 1981///
CY  - Amsterdam : 
PB  - John Benjamins , 
KW  - Psychology <Interrogatives and Questions>
ER  -