Laevastu, Taivo Fisheries oceanography new ocean environmental services / by Laevastu, Taivo ; Hela, Ilmo - London Fishing News Books Ltd. 1970 - xv, 238p. ill. 26 cm. Subjects--Topical Terms: OceanographyFishery oceanography--Hydrologic factors Dewey Class. No.: 639.22 / LAE