Reference material and bibliographies
Online reference works
- International Historical Statistics (1750-2010) (from Palgrave Macmillan): Statistics collection, providing key economic and social indicators for the last 260 years
- Oxford Reference Online: large collection of online reference works which can be searched singly or as a group. It includes subject and language dictionaries, thesauri, Who's Whos and biographical dictionaries.
- Oxford English Dictionary (OED): the online version of the multi volume dictionary
- Dictionary of National Biography: the online version of the major British biographical dictionary
- American National Biography: biographies of over 18,000 men and women from all eras and walks to life, whose lives have shaped America