TY  - RPRT
TI  - The role of natural history collections in documenting species declines
AU  - H.B. Shaffer
AU  - Robert N. Fisher
AU  - C. Davidson
PY  - 1998
DO  - 10.1016/s0169-5347(97)01177-4
UR  - https://pubs.usgs.gov/publication/1007972
ID  - 1007972
ER  -