Program: CLOCKSS
- Publisher: Duke University Press
- Print ISSN: 0022-3506
- Electronic ISSN: 1467-6494
- OCLC Number:
- Summary Holdings: v.16 (1948); v.20 (1951); v.31-v.32 (1963-1964); v.36 (1968); v.43 (1975); v.51 (1983); v.57 (1989); v.59-v.91 (1991-2023)
- Holdings Format: Digital