Sachanski S & Brankov G., B. H. (1973). Earthquake engineering: Proc. of IV Europ. symposium on Earthquake Engineering. London, Sept. 5 - 7 1972. Bulg. Acad. of Sciences.
Цитирование в стиле Чикаго (17-е изд.)Sachanski S и Boncheva H. Brankov G. Earthquake Engineering: Proc. of IV Europ. Symposium on Earthquake Engineering. London, Sept. 5 - 7 1972. София: Bulg. Acad. of Sciences, 1973.
Цитирование MLA (8-е изд.)Sachanski S и Boncheva H. Brankov G. Earthquake Engineering: Proc. of IV Europ. Symposium on Earthquake Engineering. London, Sept. 5 - 7 1972. Bulg. Acad. of Sciences, 1973.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.