Proceedings of the XVth World Congress of Philosophy : 17-22 September 1973, Varna Bulgaria Vol. 3. Nature and Existence of Man Humanism and Technological Revolution Language, Logic and Action Man, Logos and History Society and its Norms

Proceedings of the XVth World Congress of Philosophy : 17-22 September 1973, Varna Bulgaria Vol. 4. Man and its Personal Freedom Responsibility and Creativity in Art and Literature Problems of Determinism The Future of Philosophy

Proceedings of the XVth World Congress of Philosophy : 17-22 September 1973, Varna Bulgaria. Vol. 1 Philosophy and Science. Morality and Culture. Technology and Man

Proceedings of the XVth World Congress of Philosophy : 17-22 September 1973, Varna Bulgaria. Vol. 2 Reason and action in the transform Philosophy in the process of the scientific and technolog. revolution Knowledge and values in the scientific and technolog. era

Proceedings of the XVth world congress of philosophy : 17-22 Septenber 1973, Varna Bulgaria). Vol. 6, Philosophical aspects of psychology. Philosophy of education. Philosophy of law and Philosophy of politics. Additional materials. Opening session. Man, science, technology. Technology, peace and contemporary marxism. Cirpho. Closing session

Proceeding of the 2. World Congress on Ultrasonics in Medicine. : Rotterdam 4-8. June 1973 /

Fourth World petroleum congress : proceedings Section VI Utilization of petroleum products

Proceedings of the 6th Congress : Bratislava, September 4-7, 1975 Vol. 1

Proceedings of the 6th Congress : Bratislava, September 4-7, 1975. Vol. 2 /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume I. Symposium I, Carbohydrate chemistry of substances of biological interest /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume II. Symposium II, Biochemistry of wood /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume III. Symposium III, Biochemistry of the central nervous system /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume IV. Symposium IV, Biochemistry of steroids /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume V. Symposium V, Biochemistry of antibiotics /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume VI. Symposium VI, Biochemistry of morphogenesis /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume VII. Symposium VII, Biochemistry of viruses /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume IX. Symposium IX, Physical chemistry of high polymers of biological interest /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume X. Symposium X, Blood clotting factors /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume XII. Symposium XII, Biochemistry of insects /

Proceedings of the fourth international congress of biochemistry : Vienna, 1-6 September 1958. Volume XIII., Colloquia /