TY  - RPRT
TI  - User's guide for polyethylene-based passive diffusion bag samplers to obtain volatile organic compound concentrations in wells. Part 2, Field tests
AU  - Don A. Vroblesky
PY  - 2001
DO  - 10.3133/wri014061
UR  - https://pubs.usgs.gov/publication/wri014061
ID  - wri014061
ER  -