Baker, F. C. (1929). Mollusca from Vermilion and Pelican lakes, Minnesota, with the description of a new variety of Helisoma corpulenta. The Nautilus. 42(3): 95-97, 42(4): 131-136.
301374
Baker, F. C.
1929
Mollusca from Vermilion and Pelican lakes, Minnesota, with the description of a new variety of <i>Helisoma corpulenta</i>