ECU Libraries Catalog
- 1900 to 1909 2
- 1910 to 1919 25
- 1920 to 1929 131
- 1930 to 1939 172
- 1940 to 1949 160
- 1950 to 1959 256
- 1960 to 1969 753
- 1970 to 1979 1,265
- 1980 to 1989 2,821
- 1990 to 1999 4,189
- 2000 to 2009 4,132
- 2010 to 2019 1,067
- 2020 to 2023 142