RITCHE, Arthur David <br/><br/>
Studies in the history and methods of the sciences / 
[by] Arthur David Ritchie 
 - Edinburgh  The Univeristy press  1958 
 - 219 p. 
<br/><br/> Includes appendix. 
<br/><br/><label>ISBN: </label>70497 
<br/><br/><label>Dewey Class. No.: </label>509  / RIT