Plasmids : medical and theoretical aspects : 3. international symposium on Antibiotic resistance, Castle of Smolenice, Czechoslovakia, 1.-4. June, 1976 : [sborník přednášek] - Mitsuhashi, Susumu; Rosival, Ladislav, 1924-; Krčméry, Vladimír, 1931- (Avicenum, 1977)