On the interrelationship and the zoogeography of northern species of Yoldia Möller, s. str. (Mollusca, Fam. Ledidae)
Ockelmann, K.W. (1954). On the interrelationship and the zoogeography of northern species of Yoldia Möller, s. str. (Mollusca, Fam. Ledidae). Meddelelser om Grønland, 107(7). C.A. Reitzel: Copenhagen. 32 pp.
Part of: Meddelelser om Grønland. C.A. Reitzel: Copenhagen. ISSN 0025-6676, more
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