ECU Libraries Catalog
- 1951 to 1954 2
- 1955 to 1959 9
- 1960 to 1964 6
- 1965 to 1969 16
- 1970 to 1974 18
- 1975 to 1979 9
- 1980 to 1984 14
- 1985 to 1989 31
- 1990 to 1994 89
- 1995 to 1999 84
- 2000 to 2004 81
- 2005 to 2009 47
- 2010 to 2014 48
- 2015 to 2019 17
- 2020 to 2024 29