Proceedings of XI international congress use of plastics in agriculture (26th Feb.-2nd March, 1990 New Delhi ) /National committee on the use of plastics in agriculture - New Delhi: Oxford & IBH Publishing CO. PVT. Ltd., 1990 - xv, A.1 to J.61p. ISBN: 8120404971 Subjects--Topical Terms: Agriculture Subjects--Index Terms: Horticulture Irrigation Universal Decimal Class. No.: 631.1/.5:678.5(082.2) / N0