A study of coliform densities and Escherichia coli serotypes in two mountain streams.

@article{Petersen1960ASO,
  title={A study of coliform densities and Escherichia coli serotypes in two mountain streams.},
  author={Nancy J. Petersen and John R. Boring},
  journal={American journal of hygiene},
  year={1960},
  volume={71},
  pages={134-40}
}