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La peche et le repeuplement des salmonides dans le lac de Garde.
1957
MERLO S
Food and Agriculture Organization of the United Nations - Italy
Årsmelding 1955 fra Fiskeridirektoratets Kjemisk-Tekniske Forskningsinstitutt Full text
1957
Heen, Eirik
Norwegian Directorate of Fisheries - Norway
Rapport fra prøve med Westfalia store slamseparator. (sesongen 1956) Full text
1957
Sola, Einar
Fi-Kje-Te rapporter
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Norwegian Directorate of Fisheries - Norway
Samvirkekonsulentenes virksomhet 1954 og 1955 Full text
1957
Norwegian Directorate of Fisheries - Norway