Kell, N. G. Application of aerial methods in ground water studies / N. G. Kell ; translated from Russian by INSDOC - New Delhi : INSDOC, c1971 - ii, 287 p. : ill., charts, graphs, maps, tables ; 24 cm. ISBN: Rs.29 (pbk.) Subjects--Topical Terms: Ground water--USSRAerial photogrammetryProspecting Dewey Class. No.: 551.49