Beate Felten · Beth Feldman · Beth Fielding
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| 10 prostych sposobow na poprawienie pamieci | 978-83-11-10354-2 (83-11-10354-2) | 2006 |
| The Memory Manual: 10 Simple Things You Can Do to Improve Your Memory After 50 | 978-1-884956-15-7 (1-884956-15-7) | 1999 |