The World Book Encyclopedia 2020 – Hardcover - 22 Volume Set - Over 17,000 Articles
| Country | USA |
| Brand | Bison Books |
| Manufacturer | Bison Books |
| Binding | Paperback |
| ItemPartNumber | new-Nov09usbook-2017-c115536 |
| UnitCount | 1 |
| EANs | 9780803281691 |
| ReleaseDate | 0000-00-00 |