Ummerkutty, A.N.P. Science of the oceans / by A.N.P. Ummerkutty. - India : National Book Trust India , 1985. - 138p. : ills.,figs.,tables,plates ; 21cm . NULL ISBN: 8123704682 Rs. 38.00 Subjects--Index Terms: SCIENCE, OCEANS Dewey Class. No.: 551.46 / UMM/S