ECU Libraries Catalog
- 1954 to 1954 1
- 1955 to 1959 5
- 1960 to 1964 9
- 1965 to 1969 7
- 1970 to 1974 9
- 1975 to 1979 12
- 1980 to 1984 15
- 1985 to 1989 48
- 1990 to 1994 105
- 1995 to 1999 190
- 2000 to 2004 219
- 2005 to 2009 421
- 2010 to 2014 436
- 2015 to 2019 229
- 2020 to 2023 42