一般注記"Presentations and discussion at a workshop held May 30, 31, and June 1, 1990, in Salt Lake City, Utah."
Shipping list no.: 92-0470-P
Physical description for original version: xii, 132 p. : 28 cm
書誌注記Includes bibliographical references (p. 121-122)
原資料等に関する注記原資料の出版事項: [Reston, Va.?] ; Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey : For sale by Book and Open-File Reports Sales, 1992
SUPTDOC番号: I 19.3: 2013
GPO管理番号: 0620