Erdmann, R. C., Some characteristics of radioisotope power sources in an ocean environment / [by] R.C. Erdmann, E.C. Gritton, and M .J. Ozeroff - iii, 29 pages ; 28 cm. - The Rand paper series; P-5056-1 . - The Rand paper series; P-5056-1 . Subjects--Topical Terms: Radioisotopes.