Program: HathiTrust Digital Library

  • Publisher: Penton Pub. Division, etc
  • Print ISSN: 0005-1160
  • Electronic ISSN:
  • OCLC Number: 1518904
  • Validation: None
  • Retention: permanent
  • Institution: HathiTrust
  • Facility:
  • OCLC Symbol: HATHI
  • Holdings Format: Print
Materials Archive Action Date of Action Program Status/Note
v.1 1954 Aug-Dec; v.2 1955; v.3 1956; v.4 Jan-June 1957; v.4 1957; v.5 1958; v.6 July-Dec. 1959; v.6 1959; v.7 1960 Jan-Jun; v.7 1960 Jul-Dec; v.8 1961 Jan-Jun; v.8 1961 Jul-Dec; v.9 1962 Jan-Jun; v.9 1962 Jul-Dec; v.10 1963 Jan-Jun; v.10 1963 Jul-Dec; v.11 1964 Jan-Jun; v.11 1964 Jul-Dec; v.12 1965 Jan-Jun; v.12 1965 Jul-Dec; v.13 1966 Jan-Jun; v.13 1966 Jul-Dec; v.14 1967 Jan-Jun; v.14 1967 Jul-Dec; v.15 1968 Jan-Jun; v.15 1968 Jul-Dec; v.16 1969 Jan-Jun; v.16 1969 Jul-Dec; v.17 1970 Jan-Jun; v.17 1970 Jul-Dec; v.18 1971 Jan-Jun; v.18 1971 Jul-Dec; v.19 Juy-Dec. 1972; v.19 Jan.-June 1972; v.20 1973 Jan-Jun; v.20 1973 Jul-Dec; v.21 July-Dec. 1974; v.21 Jan.-June 1974; v.22 July-Dec. 1975; v.22 Jan.-June 1975; index v
committed to retain 2023-02-27 HTDL