TY  - RPRT
TI  - User’s guide to the collection and analysis of tree cores to assess the distribution of subsurface volatile organic compounds
AU  - Don A. Vroblesky
PY  - 2008
DO  - 10.3133/sir20085088
UR  - https://pubs.usgs.gov/publication/sir20085088
ID  - sir20085088
ER  -