Não informado. (1968). Abstracts of bulgarian scientific medical literature. Ministry of Public Health, Centre for Scientific Medical Information.
Style de citation Chicago (17e éd.)Não informado. Abstracts of Bulgarian Scientific Medical Literature. Sofia: Ministry of Public Health, Centre for Scientific Medical Information, 1968.
Style de citation MLA (8e éd.)Não informado. Abstracts of Bulgarian Scientific Medical Literature. Ministry of Public Health, Centre for Scientific Medical Information, 1968.
Attention : ces citations peuvent ne pas être correctes à 100%.