TY - RPRT TI - Guidelines for the use of the semipermeable membrane device (SPMD) and the polar organic chemical integrative sampler (POCIS) in environmental monitoring studies AU - David A. Alvarez PY - 2010 DO - 10.3133/tm1d4 UR - https://pubs.usgs.gov/publication/tm1D4 ID - tm1D4 ER -