The World book encyclopedia
An encyclopedia designed especially to meet the needs of elementary, junior high, and high school students
Print Book, English, ©1979
World Book-Childcraft International, Chicago, ©1979
24 i.e. 26 volumes : illustrations (some color) ; 26 cm
9780716600794, 071660079X
4560517
Australasia supplement (2 v.) and British Isles supplement (2 v.) are each numbered as v. 23-24