Silva, Michel <br/><br/>
Britannica Yearbook of Science and the Future 

 - Chicago  Encylopaedia Britanica, Inc  1973 
<br/><br/><label>Subjects--Uniform Titles: </label>--REFERENCE READING ROOM
<br/><br/><label>Subjects--Topical Terms: </label><br/>Year Book--Science Year BookEconomics
<br/><br/><label>Dewey Class. No.: </label>32  / SIL-B