Introduction to environmental microbiology / by Ralph Mitchell. Mitchell, Ralph, 1934- Microbiology. Microbial ecology. Industrial microbiology. Air microbiology. Air pollution. Water microbiology. Water pollution. QR41.2 .M57 576 MII Includes bibliographies. Englewood Cliffs, N.J. : Prentice-Hall, c1974. c1974. 1974 Text xi, 355 p. : eng Prentice-Hall series in environmental sciences.