What got you here won't get you there : how successful people become even more successful! /
Wedi'i Gadw mewn:
| Prif Awduron: | , |
|---|---|
| Fformat: | Llyfr |
| Iaith: | Saesneg |
| Cyhoeddwyd: |
London :
Profile Books,
2013.
|
| Pynciau: |
Byddwch y cyntaf i adael sylw!