Proceedings of a Colloquium on Modal and Many-Valued Logics, Helsinki, 23-26 August, 1962. 

 - Helsinki :  Suomalaisen Kirjallisuuden Kirjapaino,  1963 
 - 289 p ;  25 cm 
 - Acta philosophica Fennica ;  fasc. 16 .
<br/><br/> A colloquium held at the Swedish School of Economics, Helsinki, and sponsored by the Executive Committee of the Division of Logic, Methodology and Philosophy of Science of the International Union of the History and Philosophy of Science  Spine title: Modal and many-valued logics 
<br/><br/>Includes bibliographies 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Modality (Logic)<br/>Logic, Symbolic and mathematical