Walton, Bernard <br/><br/>
Time machine / 
Bernard Walton. 
 - London :  BBC,  c2004. 
 - 165 p. : col. ill. ; 29 cm. 
<br/><br/><label>ISBN: </label>0563487747 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time--Science.<br/>Earth--Science.<br/>Life--Science.<br/>Human--Science.