Não informado. (1921). The Quarterly Bulletin of the State Plant Board of Mississippi. State Plant Board of Mississippi, Agricultural College.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. The Quarterly Bulletin of the State Plant Board of Mississippi. Mississippi, Miss: State Plant Board of Mississippi, Agricultural College, 1921.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. The Quarterly Bulletin of the State Plant Board of Mississippi. State Plant Board of Mississippi, Agricultural College, 1921.
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