1973 The World Book Encyclopedia 22 Volumes Complete Set. Complete your library with this 1973 World Book Encyclopedia set. Comprising 22 volumes, this comprehensive collection is ideal for history enthusiasts and collectors. Discover a wealth of knowledge and insights from a bygone era. • 22-volume complete set • Published in 1973 • Rich historical content • Ideal for collectors • Comprehensive knowledge source Condition: Pre-Owned Good #encyclopediaset #complete22volumes #1973edition #worldbook #vintagebooks