He attended agricultural conferences in Geneva ( 1937 ) , Prague ( 1938 ) and Dresden ( 1939 ) .
For the next four years Tanguy - Prigent was particularly involved in agricultural issues .
Tanguy - Prigent attended agricultural conferences in Geneva ( 1937 ) , Prague ( 1938 ) and Dresden ( 1939 ) .
For the next four years Tanguy - Prigent was particularly involved in agricultural issues .