TY  - RPRT
TI  - What is science?
AU  - D.L. Shrake
AU  - L.E. Elfner
AU  - W. Hummon
AU  - R.W. Janson
AU  - M. Free
PY  - 2006
UR  - https://pubs.usgs.gov/publication/70028492
ID  - 70028492
ER  -