Isotope and radiation techniques in soil physics and irrigation studies / International Atomic Energy Agency, Proceedings of a symposium, Istanbul, 12-16 June 1967 - Vienna: International Atomic Energy Agency, 1967 - 446p. - Proceedings series . Subjects--Topical Terms: Science Subjects--Index Terms: Physics Chemistry Universal Decimal Class. No.: 631.4+631.67:621.039.83(082.2) / K7