Harrah, David. <br/><br/>
Communication :  a logical model. 

 - Cambridge, MA :  M.I.T. Press,  [1967] 
 - M.I.T. Press research monographs .
<br/><br/> First published 1963. 
<br/><br/>Bibliography: p. 107-111. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Symbolic and mathematical.<br/>Content analysis (Communication)<br/>Information theory.