Includes index.

v. 1. A -- v. 2. B -- v. 3. C-Ch -- v. 4. Ci-Cz -- v. 5. D -- v. 6. E -- v. 7. F -- v. 8. G -- v. 9. H -- v. 10. I -- v. 11. J-K -- v. 12. L -- v. 13. M -- v. 14. N-O -- v. 15. P -- v. 16. Q-R -- v. 17. S-Sn -- v. 18. So-Sz -- v. 19. T -- v. 20. U-V -- v. 21. W-X-Y-Z -- v. 22. Research guide/Index.

"A 22-volume, highly illustrated, A-Z general encyclopedia for all ages, featuring sections on how to use World Book, other research aids, pronunciation key, a student guide to better writing, speaking, and research skills, and comprehensive index. The World Book editorial staff presents information from the vast reservoir of knowledge in the most accessible and usable form. Editors design World Book articles especially to meet the reference and study needs of students in elementary school, junior high school, and high school."--Provided by publisher.