00321nam a2200109Ia 4500008004100000020001500041082001400056100001600070245005200086260005700138300001600195250814s9999    xx            000 0 und d  a1852106964  a363.7 BAI  aJohn Baines 0aConserving Our World: Conserving the Atmosphere  aLondonbHodder & Stoughton Children's Divisionc1989  a48p. ;24cm.