| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Administrative Subdivisions of Countries: A Comprehensive World Reference, 1900 through 1998 | 978-0-7864-6097-7 (0-7864-6097-0) | 2010 |
| Administrative Subdivisions of Countries: A Comprehensive World Reference, 1900 Through 1998 | 978-0-7864-0729-3 (0-7864-0729-8) | 1999 |