WEBSTER, C. (1966). Agriculture in the tropics. The English Language Book Society and Longman.
Chicago-viite (17. p.)WEBSTER, C.C. Agriculture in the Tropics. London: The English Language Book Society and Longman, 1966.
MLA-viite (9. p.)WEBSTER, C.C. Agriculture in the Tropics. The English Language Book Society and Longman, 1966.
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