Tea Research Institute of Sri Lanka. (1996). Annual report for the year ... The Institute.
Chicagoスタイル(17版)引用形式Tea Research Institute of Sri Lanka. Annual Report for the Year ... St. Commbs, Talawakele, Sri Lanka: The Institute, 1996.
MLA(8版)引用形式Tea Research Institute of Sri Lanka. Annual Report for the Year ... The Institute, 1996.
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