ECU Libraries Catalog
- 1951 to 1954 5
- 1955 to 1959 7
- 1960 to 1964 6
- 1965 to 1969 18
- 1970 to 1974 39
- 1975 to 1979 40
- 1980 to 1984 25
- 1985 to 1989 41
- 1990 to 1994 30
- 1995 to 1999 28
- 2000 to 2004 23
- 2005 to 2009 20
- 2010 to 2014 7
- 2015 to 2019 4
- 2020 to 2023 4