Congreso Internacional de Filosofia. (1973). Proceedings of the XVth World Congress of Philosophy: 17th to 22nd september 1973, Varna (Bulgaria). Sofia Press Production Centre.
Chicago Style (17th ed.) CitationCongreso Internacional de Filosofia. Proceedings of the XVth World Congress of Philosophy: 17th to 22nd September 1973, Varna (Bulgaria). Sofia: Sofia Press Production Centre, 1973.
MLA (9th ed.) CitationCongreso Internacional de Filosofia. Proceedings of the XVth World Congress of Philosophy: 17th to 22nd September 1973, Varna (Bulgaria). Sofia Press Production Centre, 1973.
Warning: These citations may not always be 100% accurate.
