| Author | Emil Sinclair, Hermann Hesse |
| Publisher Series | Biblioteca Hesse, El Libro de Bolsillo |
| Imprint | Alianza Editorial |
| Cover/Jacket Design by | Alianza Editorial |
| Illustrator | August Macke |
| Series Designer | Odile Atthalin, Rafael Celda |
| Copyright Holder | Suhrkamp Verlag, Alianza Editorial, S. A. |
| Printed by | Artes Gráficas Palermo, s.l. |
| Format | Paperback |
| Language | Spanish |
| Location | Spain |
| Reprinted | 1999 |
| Pages / Font | 177 pages |
| Series Number | BA 0522 |
| Other | 3460522 |
| ISBN 10 | 84-206-3339-9 |
| Barcode | 9 788420 633398 |
| DL (Spanish) | M-39.728-1999 |
| Notes | First edition in "El Libro de Bolsillo": 1968
27th reimpression: 1996
First edition in "Biblioteca de Autor": 1998 (January)
First reimpression: 1998 (November)
Second reimpression: 1999
Printed in Spain |
