Spangenburg Ray , <br/><br/>
History of science in the nineteenth century 
by Ray Spangenburg 
 - Hyderabad:  University press. 
<br/><br/><label>ISBN: </label>9788173711954 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History of science in the nineteenth century
<br/><br/><label>Dewey Class. No.: </label>509 SPA.H