Encycloppaedia Britannica, Inc. <br/><br/>
1993 Yearbook of science and the future   

 - Chicago  Encyclopedia Britannica, Inc.  1993 
 - 512p. 
<br/><br/><label>ISBN: </label>0852295685 
<br/><br/><label>Dewey Class. No.: </label>032.05  / N931 "R"