Use of surface-geophysical techniques for ground-water exploration in the Canovanas-Rio Grande area, Puerto Rico / by Arturo Torres-González ; prepared in cooperation with the Department of Agriculture of the Commonwealth of Puerto Rico
Physical description for original version: v, 29 p. : 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: San Juan, P.R. ; Denver, Colo. : U.S. Dept. of the Interior, Geological Survey : Open-File Services Section, Western Distribution Branch, 1985