Physical description for original version: iv, 62 p., 14 p. of plates : 28 cm
書誌注記
Bibliography: p. 28-29
原資料等に関する注記
原資料の出版事項: [Reston, Va.?] ; Alexandria, VA : Dept. of the Interior, U.S. Geological Survey : For sale by the Distribution Branch, Text Products Section, 1986