TY  - RPRT
TI  - The personal Centripeter--a particle size-selective personal air sampler.
AU  - W A Langmead
AU  - D T O'Connor
PY  - 1969
DO  - 10.1093/annhyg/12.4.185
UR  - https://pubmed.ncbi.nlm.nih.gov/5361139/
ID  - 5361139
ER  -