Publications from 1970 to 1979
Hickey, Thomas Butler, and David Jerome Rypka. 1979. "Derived search keys for government documents". Information Processing & Management. 15.
O'Neill, Edward T., and Rao Aluri. 1979. Research report on subject heading patterns in OCLC monographic records. Columbus, Ohio: OCLC, Research Dept., Research and Development Division.