TY  - RPRT
TI  - The Endangered Species Act at twenty: An analytical survey of Federal endangered species
AU  - A.A. Smith
AU  - M.A. Moote
AU  - C.R. Schwalbe
PY  - 1993
UR  - https://pubs.usgs.gov/publication/1008048
ID  - 1008048
ER  -