Beck L J <br/><br/>
Methods of Discartes    a study of the regulae 

 -  1952 
<br/><br/><label>Standard No.: </label>66,579 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R3xJ96:5:9, J2-;1