Pettifer Julian <br/><br/>
Nature watch / 
Julian Pettifer and Robin Brown with the assistance of Malcolm Whitehead 
 - London :  HarperCollins,  1994. 
 - 160 p. :  ill. ;  26 cm 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0002199564 
<br/><br/><label>LC Class. No.: </label>QH26 
<br/><br/><label>Dewey Class. No.: </label>574.0922