@article{11919,
      author = {Berg, Gerald,},
      url = {http://library.usi.edu/record/11919},
      title = {Indicators of viruses in water and food /},
      publisher = {Ann Arbor Science,},
      recid = {11919},
      pages = {viii, 424 p. :},
      address = {Ann Arbor, Mich. :},
      year = {1978},
}