00992cam a2200241 4500 178968536 TxAuBib 20110319120000.0 930716s1993||||||||||||||||||||||||eng|u 93027590 9780870449086 0870449087 DLC DLC DLC ICrlF TxAuBib Unlocking secrets of the unknown with National Geographic / prepared by the Book Division, National Geographic Society. Washington, D.C. : The Society, 1993. 200 p. : ill. (some col.) ; 26 cm. Includes index. Looks at some of the many projects the National Geographic Society has funded with research grants since 1890. Adult Follett Library Resources. National Geographic Society (U.S.) Geography Research. National Geographic Society (U.S.), Book Division.