Wickremasinghe, R.L. Facets of tea research in practice - Tea Research Institute Talawakelle 1978 - 65 - Pests Pathogens - Monographs on tea production in Sri Lanka No.7 . Nat. Bib. No.: 6101 Nat. Bib. Agency Control No.: 633.72(548.7)WIC Subjects--Topical Terms: Agriculture Universal Decimal Class. No.: 633.72(548.7) 1