00350nam 2207387 45000010005000000030023000050050009000280080041000370200014000781000032000922600054001243000013001782450027001917387StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a8755-724x aNational Geographic Society bWashingtonD.C: National Geographic Society c1992 a264-352p aResearch & Exploration