The Triphora perversa-complex in Western Europe
Bouchet, P.; Guillemot, H. (1978). The Triphora perversa-complex in Western Europe. J. Moll. Stud. 44: 344-356
In: Journal of Molluscan Studies. Oxford University Press: Reading. ISSN 0260-1230; e-ISSN 1464-3766, meer
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