Ruge, Arnold . <br/><br/>
Encyclopaedia of the Philosophical Science /  Textual Documents 
Arnold Ruge. 
 - 1st ed. / 
 - New York :  Macmillan and co ,  1913. 
 - 265p. ;  22cm. 
 - Vol.I- 
<br/><br/><label>Subjects--Index Terms: </label>Encyclopaedia-Philosophical Science Philosophical Science-Encyclopaedia Logic G-Philosophy 
<br/><br/><label>Dewey Class. No.: </label>160  / R 575 L