Calhoun, David,  c1994. <br/><br/>
1995 Yearbook of Science and the Future / 
Calhoun, David. 
 - USA :  Encyclopedia Britannica, Inc,  c1994. 
 - 512p. :  ill. ;  10 cm. 
<br/><br/><label>ISBN: </label>0-85229-602-9