ECU Libraries Catalog
- 1953 to 1954 4
- 1955 to 1959 10
- 1960 to 1964 19
- 1965 to 1969 38
- 1970 to 1974 41
- 1975 to 1979 51
- 1980 to 1984 51
- 1985 to 1989 68
- 1990 to 1994 76
- 1995 to 1999 93
- 2000 to 2004 91
- 2005 to 2009 100
- 2010 to 2014 30
- 2015 to 2019 12
- 2020 to 2023 12