Proceedings of the 3rd international congress of Acarplogy held in Prague (Czechoslovakia), august 31-september 6, 1971 : sborník referátů - Rosický, Bohumír, 1922-2002; Rosický, Bohumír, 1922-2002; Daniel, Milan, 1931-; Daniel, Milan, 1931- (Academia, 1973)