Physical description for original version: iii, 65 p. ; 23 x 10 cm
書誌注記
Bibliography: p. 63-65
原資料等に関する注記
原資料の出版事項: Washington, D.C. ; Washington, D.C. : Dept. of the Interior, National Park Service, Preservation Assistance Division : For sale by the Supt. of Docs., U.S. G.P.O., 1984