NUREG-0713, Volume 36: Occupational Radiation Exposure at Commercial Nuclear Power Reactors and Other Facilities 2014: Forty-Seventh Annual Report
Source: NUREG-0713, Volume 36: Occupational Radiation Exposure at Commercial Nuclear Power Reactors and Other Facilities 2014: Forty-Seventh Annual Report (http://www.nrc.gov:80/reading-rm/doc-collections/nuregs/staff/sr0713/v36/)