V.L. Brokaw G.E. Brethauer 1979 A simple program permits use of the text .editor 'qedx,' part of many computer systems, to input bibliographic entries and to retrieve specific entries which contain keywords of interest. Multiple keywords may be used sequentially to find specific entries. application/pdf 10.3133/ofr791433 en U.S. Geological Survey, Computer retrieval of bibliographies using an editing program reports