No Author,  <br/><br/>
Scientific American Vol 222, 70 

 - Kottayam  NATIONAL BOOKSTALL  1900 
<br/><br/><label>Subjects--Uniform Titles: </label>--GENERAL STACK
<br/><br/><label>Subjects--Topical Terms: </label><br/>TECHNOLOGY--Generalia
<br/><br/><label>Dewey Class. No.: </label>600  / .