@misc{indiciaedc9a96397763, title = {Adopt a Frog Pond and Frog Force! Citizen scientists at large}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1999}, doi = {10.3133/fs08999}, url = {https://pubs.usgs.gov/publication/fs08999}, note = {Source identifier: fs08999} }