Barrett, O. W. (1928). The tropical crops. The Macmillan Company.
Chicagoスタイル(17版)引用形式Barrett, Otis Warren. The Tropical Crops. New York: The Macmillan Company, 1928.
MLA(9版)引用形式Barrett, Otis Warren. The Tropical Crops. The Macmillan Company, 1928.
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