Bulgarian Academy of Sciences. (1978). Abstracts of Bulgarian Scientific Literature. Scientific Information Centre.
Style de citation Chicago (17e éd.)Bulgarian Academy of Sciences. Abstracts of Bulgarian Scientific Literature. Sofia: Scientific Information Centre, 1978.
Style de citation MLA (8e éd.)Bulgarian Academy of Sciences. Abstracts of Bulgarian Scientific Literature. Scientific Information Centre, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.