International Congress for Logic, Methodology and Philosophy of Science Bukareszt. (1973). Logic, methodology and philosophy of science IV: Proceedings of the Fourth International Congress for Logic, Methodology and Philosophy of Science, Bucharest, 1971. PWN - Polish Scientific Publishers ; North-Holland Publishing Company.
Citazione stile Chigago Style (17a edizione)International Congress for Logic, Methodology and Philosophy of Science Bukareszt. Logic, Methodology and Philosophy of Science IV: Proceedings of the Fourth International Congress for Logic, Methodology and Philosophy of Science, Bucharest, 1971. Warszawa : Amsterdam ; London: PWN - Polish Scientific Publishers ; North-Holland Publishing Company, 1973.
Citatione MLA (9a ed.)International Congress for Logic, Methodology and Philosophy of Science Bukareszt. Logic, Methodology and Philosophy of Science IV: Proceedings of the Fourth International Congress for Logic, Methodology and Philosophy of Science, Bucharest, 1971. PWN - Polish Scientific Publishers ; North-Holland Publishing Company, 1973.