00928cam a2200253 4500 134663360 TxAuBib 20010122120000.0 010122s1983||||||||||||||||||||||||und|u 81048076 9780870444159 0870444158 9780870444203 lib. bdg. 0870444204 lib. bdg. TxAuBib Preserving America's past / prepared by the Special Publications Division, National Geographic Society, Washington, D.C. Washington, D.C. : The Society, 1983. 199 p. : col. ill. ; 26 cm. Includes index. Bibliography: p. 199. Historic sites Conservation and restoration United States. United States History, Local. National Geographic Society (U.S.), Special Publications Division.