Belnap, Nuel D. <br/><br/>
The logic of questions and answers 

 - New Haven:  Yale University,  1976 
 - vi, 209p.:  ill.;  22cm. 
<br/><br/>Bibliography:p.155-200 and index 
<br/><br/><label>ISBN: </label>0-300-01962-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Question (logic)<br/>Question answering systems
<br/><br/><label>LC Class. No.: </label>REF BC199.Q4B44