@misc{indiciae9622149d376e,
  title = {Evaluation fo membrane filter field monitors for microbiological air sampling.},
  author = {N D Fields and G S Oxborrow and J R Puleo and C M Herring},
  year = {1974},
  doi = {10.1128/am.27.3.517-520.1974},
  url = {https://pubmed.ncbi.nlm.nih.gov/4855493/},
  note = {Source identifier: 4855493}
}