The sterols of the echinoderm psolus phantapas (holothuroidea) and observations on sterol biosynthesis in the dinoglagellate crypthecodinium cohnii/ by Kaswandi bin Md. Ambia. - University of Liverpool, 1985. - 102 pages ; 30 cm. Thesis (M. Sc) University of Liverpool, 1985 Subjects--Topical Terms: Echinodermata.Dinoflagellata.