The New Encyclopaedia Britannica in 32 volumes.
- 15th ed.
- Chicago : Encyclopaedia Britannica, c2007.
- 30 v. : ill. (some col.) ; 29
- Encyclopaedia Britannica. .
The Micropaedia is numbered v. 1-12. Includes bibliographies and index.
[1] Propaedia: outline of knowledge and guide to the Britannica.--[2] Micropaedia: ready reference and index. 12 v.--[3] Macropaedia: knowledge in depth. 19 v.