APA (7e ed.) Bronvermelding

Bulgarian Academy of Sciences. (1978). Abstracts of Bulgarian Scientific Literature. Scientific Information Centre.

Chicago (17e ed.) Bronvermelding

Bulgarian Academy of Sciences. Abstracts of Bulgarian Scientific Literature. Sofia: Scientific Information Centre, 1978.

MLA (8e ed.) Bronvermelding

Bulgarian Academy of Sciences. Abstracts of Bulgarian Scientific Literature. Scientific Information Centre, 1978.

Let op: Deze citaties zijn niet altijd 100% accuraat.