ECU Libraries Catalog
- 1954 to 1954 1
- 1955 to 1959 15
- 1960 to 1964 35
- 1965 to 1969 22
- 1970 to 1974 20
- 1975 to 1979 18
- 1980 to 1984 35
- 1985 to 1989 34
- 1990 to 1994 16
- 1995 to 1999 7
- 2000 to 2004 18
- 2005 to 2009 10
- 2010 to 2014 7
- 2015 to 2019 1
- 2020 to 2021 1