AGUA SUBTERRANEA EN UN SUMIDERO YESOSO.RIVERO M.1968; GEOL. METAL; MEX; 1968(9), VOL. 4, NUM. 0025, P. 33 A 42Miscellaneous

GEOLOGY AND GROUND-WATER RESOURCES OF FILLMORE COUNTY,NEBRASKA.KEECH CF; DREESZEN VH; PETRI LR et al.1968; GEOL. SURV. U.S.A., WAT. SUPPLY PAPER; USA; 1968, NUM. 1839Miscellaneous

GROUND-WATER GEOLOGY OF KORDOFAN PROVINCE,SUDAN.RODIS HG; HASSAN A; WAHADAN L et al.1968; GEOL. SURV. U.S.A., WAT. SUPPLY PAPER; USA; 1968, NUM. 1757Miscellaneous

CONTRIBUTION A L'ETUDE HYDROGEOLOGIQUE DE LA BASSE VALLEE DU GARDON (GARD).NITARD J.1966; THESE.UNIV.MONTPELLIER.FAC.SCI.INST.GEOL.; 1966(6), P. 1 A 40Miscellaneous

ALIMENTATION D'UNE NAPPE PAR INFILTRATION PROVOQUEE ENTRE NAPPES.DEUTSCH M.sdTRAD. B.R.G.M.; FR.; DE L'ANGL.: ASS. INTERNATION. HYDROGEOLOGUES, PUBL., BELG. 1967; NO 72, 159-172. SYMP.; HAIFA; 1967,1975, NUM. 5442, P. 1 A 16Miscellaneous