Belnap, Nuel D. ,  jr.,  1930- <br/><br/>
The logic of questions and answers / 
Nuel D. Belnap, Jr. and Thomas B. Steel, Jr 
 - New Haven :  Yale University Press,  c1976 
 - vii, 209 p. ;  21 cm. 
<br/><br/>Bibliography : p. 155-209 
<br/><br/><label>ISBN: </label>0300019629 :  PND 9.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Question (Logic)<br/>Question-answering systems<br/>Formal languages<br/>Philosophy
<br/><br/><label>Dewey Class. No.: </label>160