| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| World Almanac and Book of Facts, 1990 | 978-0-88687-559-6 (0-88687-559-5) | 1989 |
| World Almanac and Book of Facts 1991 | 978-0-88687-578-7 (0-88687-578-1) | 1990 |
| World Almanac and Book of Facts 1993 | 978-0-88687-658-6 (0-88687-658-3) | 1992 |