The New Encyclopaedia Britannica.
- 15th ed.
- Chicago : Encyclopaedia Britannica, inc., c1977.
- 19 v. : ill. ; 29 cm.
The New Encyclopaedia Britannica.
Includes bibliographies.
[1] Propaedia: outline of knowledge, guide to the Britannica.--[2] Micropaedia: ready reference and index. 10 v.--[3] Macropaedia: knowledge in depth. 19 v.