Alabama. Dept. of Agriculture and Industries. Division of Plant Industry. (1943). Certification of seed sweet potatoes and sweet potato plants (Rev.). The Division.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিAlabama. Dept. of Agriculture and Industries. Division of Plant Industry. Certification of Seed Sweet Potatoes and Sweet Potato Plants. Rev. Montgomery, Ala.: The Division, 1943.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিAlabama. Dept. of Agriculture and Industries. Division of Plant Industry. Certification of Seed Sweet Potatoes and Sweet Potato Plants. Rev. The Division, 1943.
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