Wright, Georg Henrik von,  1916- <br/><br/>
An essay in deontic logic and the general theory of action :  With a bibliography of deontic and imperative logic / 
Georg Henrik von Wright. 
 - Amsterdam  North-Holland Pub. Co.,  1968. 
 - 112 p.  25 cm. 
 - Acta philosophica Fennica  Fasc. 21 .
<br/><br/>Bibliography: p. [97]-107. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic<br/>Duty.<br/>Ethics<br/>Act (Philosophy)