APA (7e ed.) Bronvermelding

Não informado. (1968). Abstracts of bulgarian scientific medical literature. Ministry of Public Health, Centre for Scientific Medical Information.

Chicago (17e ed.) Bronvermelding

Não informado. Abstracts of Bulgarian Scientific Medical Literature. Sofia: Ministry of Public Health, Centre for Scientific Medical Information, 1968.

MLA (8e ed.) Bronvermelding

Não informado. Abstracts of Bulgarian Scientific Medical Literature. Ministry of Public Health, Centre for Scientific Medical Information, 1968.

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