Armstrong, D. M <br/><br/>
A combinatorial theory of possibility 
D.M. Armstrong 
 - Cambridge  Cambridge Univeristy Press  1989 
 - xiii, 156 p. ; 23 cm 
<br/><br/> Includes bibliographical references 
<br/><br/><label>ISBN: </label>9780521377805 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logical atomism<br/>Possibility
<br/><br/><label>Dewey Class. No.: </label>146.5 ARM