APA引文

Bulgarska akademiia na naukite. TSentur za nauchna informatsiia. (1979). Abstracts of Bulgarian scientific literature. The Centre.

Chicago Style (17th ed.) Citation

Bulgarska akademiia na naukite. TSentur za nauchna informatsiia. Abstracts of Bulgarian Scientific Literature. Sofia: The Centre, 1979.

MLA引文

Bulgarska akademiia na naukite. TSentur za nauchna informatsiia. Abstracts of Bulgarian Scientific Literature. The Centre, 1979.

警告：這些引文格式不一定是100％准確.