Abeygunawardena, D.V.W. Diseases of cultivated plants - The Colombo ApothecariesCo.Ltd Colombo 1969 - 287p - Diseases Crops Plantations Spice Crops Plant disease Nat. Bib. No.: 1109 Nat. Bib. Agency Control No.: 632(548.7) Subjects--Topical Terms: Agriculture Universal Decimal Class. No.: 632. 1