Tegzesek -Trichoptera /
Proceedings of the 2nd International congress of acarology Sutton Bonington 19th-25th July, 1967 /
International computing symposium 1977: proceedings of the international computing symposium 1977, Liege, Belgium, 4-7 April 1977.
Proceedings of the 22nd International congress of psychology : Leipzig, GDR july 6-12, 1980.
Proceeding of the international numismatic symposium /
Proceedings of the International numismatic symposium /
Proceedings of the 1. international symposium on dredging technology : Canterbury, England 1975 /
Proceedings of the 2nd international pharmacological meeting : August 20-23, 1963. Volume 7, Pharmacology of oriental plants /
England, England /
Coronary heart diesease. 2nd International symposium at Frankfurt 1972.
Proceedings of the 8th International Symposium on Pseudokarst
Medical data transmission by public telephone systems. : 2nd international symposium, Mainz, June 3 - 4, 1977.
2nd InternationalSymposium on Polymer Characterization ... August 21-23,1972 /
Proceedings of the international symposium on gold metallurgy. Winnipeg 23-26, August 1987. vol. 1 /
Proceedings of the international symposium on fracture mechanics. Winnipeg, August 23-26,1987. vol. 6 /
Proceedings of the 1 International symposium on cyclodextrins : Budapest, Hungary, 30 September - 2 October, 1981 /
The cucible-tree synthesis of silicides and borides. International symposium ... Prague, July 1-July 5, 1963.
New phase in the uranium-molybdenum-silicon. International symposium ... Prague, July 1-July 5, 1963.
25th annual Slovak day, Sunday, July 29, 1951.
Dialectical Materialism and Modern Science. Proceedings of an International Symposium.
Proceedings of the 2nd International Symposium on Trichoptera. University of Reading, England, 25 - 29 July 1977.