TY - BOOK ED - ebrary, Inc. TI - Evaluation of guidelines for exposures to technologically enhanced naturally occurring radioactive materials AV - RA569 .E899 1999eb U1 - 612/.01448 21 PY - 1999/// CY - Washington, DC PB - National Academy Press KW - Radiation KW - Health aspects KW - Low-level radiation KW - Radiation, Background KW - Radioactive pollution KW - Electronic books KW - local N1 - Includes bibliographical references; Electronic reproduction; Palo Alto, Calif.; ebrary; 2013; Available via World Wide Web; Access may be limited to ebrary affiliated libraries UR - http://site.ebrary.com/lib/daystar/Doc?id=10056954 ER -