ECU Libraries Catalog
- 1955 to 1959 22
- 1960 to 1964 75
- 1965 to 1969 102
- 1970 to 1974 125
- 1975 to 1979 155
- 1980 to 1984 148
- 1985 to 1989 235
- 1990 to 1994 284
- 1995 to 1999 277
- 2000 to 2004 278
- 2005 to 2009 191
- 2010 to 2014 121
- 2015 to 2019 36
- 2020 to 2021 2