Lefkovits, Ivan . Limiting dilution analysis of cells in the immune system / Ivan Lefkovits and Herman Waldmann. - Cambridge : Cambridge University Press , 1979. - 262p. : ills ; 22cm . Includes bibliographical references and index ISBN: 0521227712 UKP 15.00 Subjects--Index Terms: IMMUNOLOGY Dewey Class. No.: 616.0797 / LEF/L