00986cam a2200265 4500 252171519 TxAuBib 20160101120000.0 760617s1976||||||||||||||||||||||||eng|u 76000688 9780870441929 $4.75 0870441922 $4.75 DLC DLC DLC TxAuBib National Geographic Society (U.S.), Special Publications Division. Clues to America's past / prepared by the Special Publications Division, National Geographic Society ; [by Jeffrey P. Brain ... et al.]. Washington : The Society, 1976. 199 p. : ill. ; 27 cm. Includes index. Bibliography: p. 199. 20160101. United States Constitutional Convention 1787 Antiquities. Indians of North America Antiquities. Archaeology Methodology. Brain, Jeffrey P.