TY - RPRT TI - Evaluation fo membrane filter field monitors for microbiological air sampling. AU - N D Fields AU - G S Oxborrow AU - J R Puleo AU - C M Herring PY - 1974 DO - 10.1128/am.27.3.517-520.1974 UR - https://pubmed.ncbi.nlm.nih.gov/4855493/ ID - 4855493 ER -