Hasle, Grethe Rytter, An analysis of the phytoplankton of the Pacific Southern ocean : abundance, composition, and distribution during the Brategg Expedition, 1947 - 1948 / Grethe Rytter Hasle. Subjects--Topical Terms: ABUNDANCIA.COMPOSICION.DISTRIBUCION.FITOPLANCTON. Subjects--Geographic Terms: OCEANO PACIFICO SUR.