Physical description for original version: x, 157 p. : 28 cm. +
書誌注記
Bibliography: p. 153-154
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, U.S. Geological Survey, 1985