The sea bottom and its production of fish-food: A survey of the work done in connection with valuation of the Danish waters from 1883 - 1917
Petersen, C.G.J. (1918). The sea bottom and its production of fish-food: A survey of the work done in connection with valuation of the Danish waters from 1883 - 1917. Report of the Danish Biological Station to the Ministry of Fisheries, 25. Centraltrykkeriet (C. Ferslew): Copenhagen. 62 + plates pp.
Deel van: Report of the Danish Biological Station to the Ministry of Fisheries. The Danish Biological Station: Copenhagen. ISSN 0901-1765, meer
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