| Other Title | Hutchinson 20th century encyclopedia. |
| GMD | Text |
| Classification | 032 W399 |
| Publisher | New York, Prentice Hall, c1992 |
| Subject | Encyclopedias and dictionaries -- Databases. |
| Description | 1230 p. : ill. (some col.), col. maps ; 29 cm. |
| ISBN | 9780139474828 |