Drug resistance of microorganisms / Robert J. Schnitzer and Emanuel Grunberg. Schnitzer, Robert J. (Robert Julius), 1894- Grunberg, Emanuel, 1922- joint author. Drugs Physiological effect. Microorganisms. QP909 .S42 615.1 SCD Includes bibliographical references and index. New York : Academic Press, c1957. c1957. 1957 Text xiv, 395 p. : eng