Appendix computer data listings to accompany a report on aerial radiometric and magnetic survey of the Bethel and Yukon areas in Alaska. Single-record and averaged-record data listings are prepared for each NTMS quadrangle surveyed. Within each quadrangle, the data are arranged by flight line and contain, as heading information on each page, the contractor's name (Texas Instruments), the name of the survey, the name of the NTMS quadrangle, the flight-line number, and the day of year on which the data were collected.