ECU Libraries Catalog
- 1948 to 1949 5
- 1950 to 1954 8
- 1955 to 1959 43
- 1960 to 1964 80
- 1965 to 1969 40
- 1970 to 1974 48
- 1975 to 1979 119
- 1980 to 1984 147
- 1985 to 1989 81
- 1990 to 1994 98
- 1995 to 1999 75
- 2000 to 2004 71
- 2005 to 2009 111
- 2010 to 2014 174
- 2015 to 2019 47