The Freshwater Amphipods, Gammarus pulex (L.) and Gammarus lacustris G. O. Sars, in Denmark and Fennoscandia - a Contribution to the Late- and Post-Glacial Immigration History of the Aquatic Fauna of Northern Europe
Häftad bok. Commentationes biologicae XV:1. 1954. 91 sidor.
Gott skick. Extrakt. Ouppskuren.