Duncan, Robert Kennedy <br/><br/>
The new knowledge 
Robert Kennedy Duncan                                   
 - London  Hodder and Stoughton  1906 
 - xviii, 263p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science-General
<br/><br/><label>Universal Decimal Class. No.: </label>50  / DUN