00451nam a2200157Ia 4500008004100000082001600041100001900057245009200076250000600168260004900174300000800223650001800231650001800249653001300267653001300280170901s1984    xx            000 0 und d  a575.1bH44G  aHayes, William 0aGenetics of Bacteria and their VirusesbSutdies in Basic Genetics and Molecular Biology  a2  aDelhibCBS Publishers and Distributorsc1984  a925  aLife sciences  aPure Sciences  aBacteria  aGenetics