Laman, T. G., Boss, N. C. & Blankespoor, H. D. (1984). Depth distribution of seven species of gastropods in Douglas Lake, Michigan. The Nautilus. 98(1): 20-25.
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Laman, T. G., Boss, N. C. & Blankespoor, H. D.
1984
Depth distribution of seven species of gastropods in Douglas Lake, Michigan