Não informado. (1971). Seed Pathology News. Danish Government Institute of Seed Pathology for Developing Countries.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Seed Pathology News. Copenhagen: Danish Government Institute of Seed Pathology for Developing Countries, 1971.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Seed Pathology News. Danish Government Institute of Seed Pathology for Developing Countries, 1971.
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