Recommendations for waste disposal of phosphorus-32 and iodine-131 for medical users U.S. Department of Commerce - Washington U.S. Department of Commerce 1951 - iii, 11 s. graf. 18 cm. - National Bureau Of Standards Handbook no. 49 . Subjects--Topical Terms: Radioactive waste.Refuse disposal. Dewey Class. No.: 621.4838 REC 1951