Blake, C. H. (1933). Platyhelminthes. In: William Procter, Biological Survey of Mount Desert Region, 5: 127-129.. Wistar Institute of Anatomy and Biology, Philadelphia.
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Blake, C. H.
1933
Platyhelminthes.
In: William Procter, Biological Survey of Mount Desert Region
5: 127-129.. Wistar Institute of Anatomy and Biology, Philadelphia.