- Author: Thomas Hutchinson (aut.) Luis V. Varela (trad.)
- Language: Spanish
- Year: 1945
- Author: H. R. Maturana, F. J. Varela
- Language: English
- Year: 2012
- Author: María do Mar Castro Varela, Nikita Dhawan
- Language: German
- Year: 2015
- Author: Adalberto Antônio Varela-Freire
- Language: Portuguese
- Year: 2002
- Author: María do Mar Castro Varela (editor), Leila Haghighat (editor)
- Language: German
- Year: 2023
- Author: Humberto R. Maturana, Francisco J. Varela
- Language: English
- Year: 2023
- Author: Joe Varela
- Language: English
- Year: 1996