Armstrong D.M. Au. <br/><br/>
What is a law of nature? 

 - London  Cambrideg university press England       1983 
 - 180p  cm. 
<br/><br/><label>Standard No.: </label>19,366 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Z,91, M3