The unconquerable
Edición de la obra The Unconquerable
| Autor | Helen MacInnes |
|---|---|
| Editorial | Fontana |
| Fecha de publicación | 1970 |
| Lugar | London |
| Idioma | inglés |
| Páginas | 511 |
| ISBN-10 | 000612173X |
| OCLC | 10863423 |
| Número de Cutter | M152u |
from Wikipedia entry on Helen MacInnes:"Her 1944 book, The Unconquerables carries such an accurate portrayal of the Polish resistance that some thought she was using classified information given to her by her husband.[8][9]"