Water wells in Puerto Rico
Ward, Porter Elwood
Water wells in Puerto Rico by P. E. Ward and L. S. Truxes ; prepared by the United States Geological Survey in cooperation with The Legislative Assembly of Puerto Rico...[et al.] - Washington, D. C. U. S. Geological Survey 1964. - 248 p. ill. - Water-Resources Bulletin, no. 3 .
Water, Under ground--Puerto Rico.
Water wells in Puerto Rico by P. E. Ward and L. S. Truxes ; prepared by the United States Geological Survey in cooperation with The Legislative Assembly of Puerto Rico...[et al.] - Washington, D. C. U. S. Geological Survey 1964. - 248 p. ill. - Water-Resources Bulletin, no. 3 .
Water, Under ground--Puerto Rico.