TY  - RPRT
TI  - Monitoring long-term trends in Wisconsin frog and toad populations
AU  - M.J. Mossman
AU  - L.M. Hartman
AU  - R. Hay
AU  - J.R. Sauer
AU  - B.J. Dhuey
PY  - 1998
UR  - https://pubs.usgs.gov/publication/5210888
ID  - 5210888
ER  -