ECU Libraries Catalog
- 1954 to 1954 1
- 1955 to 1959 1
- 1960 to 1964 5
- 1965 to 1969 4
- 1970 to 1974 1
- 1975 to 1979 4
- 1980 to 1984 6
- 1985 to 1989 27
- 1990 to 1994 116
- 1995 to 1999 101
- 2000 to 2004 153
- 2005 to 2009 219
- 2010 to 2014 111
- 2015 to 2019 141
- 2020 to 2023 69