Burch, J. B. (1961). The chromosomes of Planorbarius corneus (Linnaeus) with a discussion on the value of chromosome numbers in snail systematics. Basteria. 25 (4/5): 45-52. Leiden.
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Burch, J. B.
1961
The chromosomes of <i>Planorbarius corneus</i> (Linnaeus) with a discussion on the value of chromosome numbers in snail systematics