TY - BOOK ED - American Petroleum Institute, API TI - Bulletin on management of naturally ocurring radioactive materials (NORM) in oil & gas production: API bulletin E2 (BUL E2) U1 - Caja 13 PY - 2006/// CY - Washington PB - American Petroleum Institute, API KW - NORM KW - Normas API KW - Normalización ER -