Web sites
Amphibian Research and Monitoring Initiative
http://armi.usgs.gov
Deformed Frogs in Minnesota - Minnesota Pollution Control Agency
http://www.pca.state.mn.us/hot/frogs.html
Society for the Study of Amphibians and Reptiles
http://www.ssarherps.org/
Books
Oldfield, B. and J.J. Moriarty. 1994. Amphibians and Reptiles Native to Minnesota. University of Minnesota Press, Minneapolis. 237 pp.
Conant, R. and J.T. Collins. 1991. A Field Guide to Reptiles and Amphibians of Eastern and Central North America. Houghton Mifflin Company, Boston. 450 pp.
Tyning, T.F. 1990. A Guide to Amphibians and Reptiles. Little, Brown and Company, New York. 400 pp.
Mattison, C. 1987. Care of Reptiles and Amphibians in Captivity. 2d ed. Blanford, London. 317 pp.
Karns, D.R. 1986. Field Herpetology: Methods for the Study of Amphibians and Reptiles in Minnesota. Bell Museum of Natural History, Occasional Paper No. 18: 1?88.
Vogt, R.C. 1981. Natural History of Amphibians and Reptiles of Wisconsin. Milwaukee Public Museum, Milwaukee. 205 pp. OUT OF PRINT
Wright, A.H. and A.A. Wright. 1949. Handbook of Frogs of the United States and Canada. Cornell University Press, Ithaca. 640 pp.
CDs
Voices of the Night: the Calls of the Frogs and Toads of Eastern North America. Produced by the Library of Natural Sounds, Cornell Laboratory of Ornithology, Ithaca, NY.
Calls of Minnesota's Frogs and Toads: Reference and Training CD
The Calls of Minnesota's Frogs and Toads: Reference and Training CD is a high quality CD produced by Minnesota Frog Watch. The recordings are clear and will help you learn the calls of the state's frogs and toads. Cost is $12.00 (this includes sales tax, shipping and handling). Send a check to A Thousand Friends of Frogs, Hamline University Center for Global Environmental Education, 1536 Hewitt Avenue, St. Paul, MN 55104.