ECU Libraries Catalog
- 1954 to 1954 1
- 1955 to 1959 16
- 1960 to 1964 38
- 1965 to 1969 23
- 1970 to 1974 20
- 1975 to 1979 21
- 1980 to 1984 35
- 1985 to 1989 38
- 1990 to 1994 18
- 1995 to 1999 10
- 2000 to 2004 21
- 2005 to 2009 22
- 2010 to 2014 15
- 2015 to 2019 5
- 2020 to 2023 7