The new encyclopaedia Britannica : [in 33 volumes]

V.1-12. Micropaedia : Ready reference

v. 13-29. Macropaedia : Knowledge in depth

v. [30]. Propaedia : Outline of knowledge ; guide to the Britannica

v. [31]. 2011 Encyclopaedia Britannica book of the year

v. [32]. Index, A-K

v. [33]. Index, L-Z