TY  - RPRT
TI  - Think before you sample data!
AU  - P. E. Bourgeois
AU  - V. J. Sclafani
AU  - J.K. Summers
AU  - S. C. Robb
AU  - Beth A. Vairin
PY  - 1998
UR  - https://pubs.usgs.gov/publication/70207769
ID  - 70207769
ER  -