Bats of Wisconsin(PDF). Wisconsin Department of Natural Resources. Wisconsin Department of Natural Resources. 2013 [April 11, 2017]. (原始内容存档(PDF)于2016-08-04).
wiatri.net
Bats of Wisconsin(PDF). Wisconsin Department of Natural Resources. Wisconsin Department of Natural Resources. 2013 [April 11, 2017]. (原始内容存档(PDF)于2016-08-04).