International Congress on

international congress on large dams (10)

international congress on animal reproduction and artificial insemination,5th,trent,1964

international congress on combustion engines 11th barcelona 1975

international congress on combustion engines 12th tokyo

international congress on combustion engines 14th helsinki 1981

10th international Congress on Combustion Engines 1973.

International Congress on Combustion Engines 10th 1973

著者: International Congress on Astronautics(13th Varna 1962)

International Congress on Electro-Heat

(Wiesbaden)International Congress on Electro-Heat

5th International Congress on Animal Reproduction and Artificial Insemination

著者: International Congress on Animal Reproduction and Artificial Insemination 5th Trent 1964

Transactions of the 12th International Congress on Large Dams

(Mexico City)International Congress on Large Dams