Winslow, C E FINAL REPORT OF THE COMMITTEE ON STANDARD METHODS FOR THE EXAMINATION OF AIR. [electronic resource] - American journal of public health (New York, N.Y. : 1912) Jan 1917 - 54-72 p. digital Publication Type: Journal Article ISSN: 0271-4353 Standard No.: 10.2105/ajph.7.1.54 doi