G.B. · Gyöngyi Bakó · Gyongyi Bako
Guinness Records · Guinness World Records Limited
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Guinness World Records 2007: With Cards | 978-1-904994-12-1 (1-904994-12-1) | 2006 |
| The Guinness Book of World Records 1998 | 978-0-9652383-5-9 (0-9652383-5-0) | 1997 |