The New Encyclopaedia Britannica in 30 Volumes vol. 7, macropaedia, knowledge in depth Encyclopedia Britannica - 32nd ed. - Chicago Encyclopaedia Britannica 1984 - 1135p. ISBN: 0-85229-413-1 Subjects--Topical Terms: Encyclopedia-MacropaediaNASA Thesaurus Universal Decimal Class. No.: 031 / EBR-7