Chicago Manual of Style Online [Details]

The 15th edition of the standard style manual used by writers and editors of scholarly books and journals.

  Oxford English Dictionary [Details]

The world's leading authority on the history and development of the English language since 1150. Based on the 1989 2nd edition, a 20-volume set, with additions from 1993-1997 and the 3rd edition (in progress) from 2000-. Approximately 1,000 new and revised entries will be released quarterly online.