00257nam a2200097 a 450000500170000000800410001705000170005810000250007524500160010026000430011620140414131920.0101022s19uu    xx            00    eng d  aERbOu7 1997  aHannaford, Priscilla  aOur planet.  aLeicestershire, UK :bLadybird,c1997.