APA (7 ম সংস্করণ) উদ্ধৃতি

Não informado. (2020). Abstracts of Bulgarian Scientific Literature. Agricultural Academy, Center for Scientific, Technic and Economic Information.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Não informado. Abstracts of Bulgarian Scientific Literature. Sofia: Agricultural Academy, Center for Scientific, Technic and Economic Information, 2020.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Não informado. Abstracts of Bulgarian Scientific Literature. Agricultural Academy, Center for Scientific, Technic and Economic Information, 2020.

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