Não informado. Report of the State Zoologist. Geological and Natural History Survey of Minnesota.
Chicago-Zitierstil (17. Ausg.)Não informado. Report of the State Zoologist. Minneapolis, Minn: Geological and Natural History Survey of Minnesota.
MLA-Zitierstil (8. Ausg.)Não informado. Report of the State Zoologist. Geological and Natural History Survey of Minnesota.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.