ECU Libraries Catalog
- 1946 to 1949 7
- 1950 to 1954 15
- 1955 to 1959 18
- 1960 to 1964 45
- 1965 to 1969 47
- 1970 to 1974 61
- 1975 to 1979 79
- 1980 to 1984 97
- 1985 to 1989 127
- 1990 to 1994 70
- 1995 to 1999 0
- 2000 to 2004 3
- 2005 to 2009 1
- 2010 to 2014 2
- 2015 to 2019 2