Zoysa, A.K.N Hand book on tea - Tea Research Institute Talawakelle 2008 - 384p lk - Sri lanka Hand books Tea processing Black Tea OrganicTea Tea diseases Weed control ISBN: 955-9023-00-4 Nat. Bib. No.: 7010 Nat. Bib. Agency Control No.: 633.72 (548.7) HAN Subjects--Topical Terms: Agriculture Universal Decimal Class. No.: 633.72 (548.7) 1