En busca del ser
epub
- Author: Stanislav Grof, Christina Grof
- Language: Spanish
- Year: 1990
La Consciencia
epub
- Author: P. D. Uspenskii
- Language: Spanish
- Author: George Ivanovich Gurdjieff
- Language: Spanish
- Author: George Ivanovich Gurdjieff
- Language: Spanish
- Year: 1946
- Author: George Ivanovich Gurdjieff
- Language: Spanish
- Year: 1950
- Author: George Ivanovich Gurdjieff
- Language: Spanish
- Year: 1960
- Author: Kenneth Walker
- Language: Spanish
- Year: 1965
Alquimia
epub
- Author: Marie-Louise von Franz
- Language: Spanish
- Year: 1980
- Author: P. D. Uspenskiï
- Language: Spanish
- Year: 1931
- Author: George Ivanovich Gurdjieff
- Language: Spanish
- Year: 1946