The new encyclopaedia Britannica in 30 volumes : Macropaedia : Knowledge in Depth.
- 15th edition.
- Chicago, etc. : Encyclopaedia Britannica, 1974.
- Vol. : ill. ; 28 cm.
- (73)(03) (NLA) .
Guide to the Britannica. Aalto - Arithmetic. Arizona - Bolivar. Bolivia -Cervantes. Ceylon - Congreve. Conifer - Ear Diseases. Earth - Everglades. Evidence - Georgian SSR. Geraniales - Hume. Humidity - Ivory Coast. Jackson - Livestock. Livingstone - Metalwork. Metamorphic - New Jersey. Newman - Peisistratus. Peking - Probability.