Não informado. (2020). Abstracts of Bulgarian Scientific Literature. Agricultural Academy, Center for Scientific, Technic and Economic Information.
Style de citation Chicago (17e éd.)Não informado. Abstracts of Bulgarian Scientific Literature. Sofia: Agricultural Academy, Center for Scientific, Technic and Economic Information, 2020.
Style de citation MLA (8e éd.)Não informado. Abstracts of Bulgarian Scientific Literature. Agricultural Academy, Center for Scientific, Technic and Economic Information, 2020.
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