TY - GEN TI - AMERICAN NATIONAL STANDARD PROGRAM FOR TESTING BIOLOGICAL SHIELDING IN NUCLEAR REACTOR-PLANTS U1 - 621.48320212 PY - 1972/// CY - Illinois PB - Amer. Nuclear Soc. KW - Nuclear Reactors -- Shielding Radiation Specifications N1 - Bibliography : P. 5-6; At Head Of Title : Ansi N18.9-1972 ER -