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1by Truskanov, M.D., FAO, Rome (Italy) eng, Symposium on Hydro-Acoustics in Fisheries Research eng 19 Jun 1973 Bergen (Norway), Zapherman, M.L., International Council for the Exploration of the Sea, Charlottenlund Slot (Denmark) eng, International Commission for the Northwest Atlantic Fisheries, Dartmouth, Nova Scotia (Canada) eng
Published FebTexto bibliotecaFAO IT