Armstrong, D.M. <br/><br/>
What is law of nature  D.M. Armstrong. 

 - Cambridge  Cambridge University Press  1983 
 - ix, 1870p., 21cm 
 - (Cambridge studies philosophy). .
<br/><br/><label>ISBN: </label>0-521-25343-8. 
<br/><br/><label>Dewey Class. No.: </label>171.2,  / A74W