Program: HathiTrust Digital Library

  • Publisher: Penton/IPC, etc
  • Print ISSN: 0024-9114
  • Electronic ISSN:
  • OCLC Number: 2111909
  • Validation: None
  • Retention: permanent
  • Institution: HathiTrust
  • Facility:
  • OCLC Symbol: HATHI
  • Holdings Format: Print
Materials Archive Action Date of Action Program Status/Note
v.1 Sept.-Dec. 1929; v.15 JY-D(1943); v.15 JA-JE(1943); v.16 JY-D(1944); v.16 JA-JE(1944); v.19:pt.1(1947); v.19:pt.2(1947); v.20 JY-D(1948); v.20 JA-JE(1948); v.20:pt.1(1948); v.20:pt.2(1948); v.21 JY-D(1949); v.21 JA-JE(1949); v.24; v.24 JY-D(1952); v.24 JA-JE(1952); v.25:10-12 O-D(1953); v.25:7-9 JY-S(1953); v.25:1-3 JA-MR(1953); v.25:4-6 AP-JE(1953); v.26:10-12 O-D(1954); v.26:7-9 JY-S(1954); v.26:1-3 JA-MR(1954); v.26:4-6 AP-JE(1954); v.26 no.7-12; v.27 no.1-6; v.27 no.7-12; v.28:14-19 JY-S(1956); v.28:20-26 O-D(1956); v.28:7-13 AP-JE(1956); v.28 no.1-6; v.28 no.7-12; v.29:14-19 JY-S(1957); v.29:20-26 O-D(1957); v.29:7-13 AP-JE(1957); v.29 pt.1; v.29 pt.2; v.29 pt.4; v.29 no.15-17; v.30 no.1-3; v.30 no.4-6; v.30 no.7-9; v.30 no.10-12; v.33:1-6 JA-MR(1961); v.33:7-13 MR-JE(1961); v.34:1-8 JA-MY(1962); v.34:9-15 AP-JE(1962); v.34 pt.4; v.35:1-5 JA-F(1963); v.35:6-10 MR-AP(1963); v.35:11-12 MY-JE(1963); v.36:1-5 JA-F(1964); v.36:21-25 S-O(1964); v.36:26-30 N-D(1964); v.36:6-10 MR-AP(1964); v.36:11-15 MY-JE(1964); v.36:16-20 JY-AG(1964); v.36 no.16-23; v.36 no.24-27; v.36 no.28-30; v.37:1-4 JA-F(1965); v.37:20-25 S-O(1965); v.37:26-30 N-D(1965); v.37:5-10 MR-AP(1965); v.37:11-15 MY-JE(1965); v.37:16-19 JY-AG(1965); v.37 no.1-3; v.37 no.4-6; v.37 no.9; v.38:20-25 S-O(1966); v.38:26-30 N-D(1966); v.38:5-10 MR-AP(1966); v.38:11-15 MY-JE(1966); v.38 no.1-3; v.38 no.16-19; v.39:1-4 JA-F(1967); v.39:21-25 S-O(1967); v.39:26-30 N-D(1967); v.39:5-10 MR-AP(1967); v.39:11-15 MY-JE(1967); v.39 no.1-3; v.39 no.4-6; v.39 no.10-12; v.39 no.16-20; v.39 no.21-23; v.40:1-5 JA-F(1968); v.40:21-25 S-O(1968); v.40:26-30 N-D(1968); v.40:6-10 MR-AP(1968); v.40:11-15 MY-JE(1968); v.40:16-20 JY-AG(1968); v.40 no.7-9; v.40 no.10-12; v.41:1-4 JA-F(1969); v.41:20-25 S-O(1969); v.41:26-30 N-D(1969); v.41:10-15 MY-JE(1969); v.41:16-19 JY-AG(1969); v.41 pt.1; v.41 no.4; v.41 no.5-9; v.41 no.15; v.41 no.20; v.41 no.22-23; v.41 no.24-30; v.42:1-5 JA-F(1970); v.42:21-26 S-O(1970); v.42:27-31 N-D(1970); v.42:6-8 MR-AP(1970); v.42:9-11 AP(1970);
committed to retain 2022-07-25 HTDL