Microbial ecology : a conceptual approach / edited by J. M. Lynch, N. J. Poole. Lynch, J. M. ed. Poole, N. J. ed. Microbial ecology. 576.15 LYM " A Halsted Press book." Includes bibliographical references and index. NeW York ; Oxford : Wiley ; Blackwell, c1979. c1979. 1979 Text xiv, 266 p. : eng