ECU Libraries Catalog
- 1956 to 1959 7
- 1960 to 1964 11
- 1965 to 1969 25
- 1970 to 1974 84
- 1975 to 1979 111
- 1980 to 1984 129
- 1985 to 1989 192
- 1990 to 1994 180
- 1995 to 1999 175
- 2000 to 2004 153
- 2005 to 2009 103
- 2010 to 2014 40
- 2015 to 2019 29
- 2020 to 2023 11