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[Subject: General Nature Of Life]
Translated by: PEZZUOLI CLAUDIO
Translated in 51 languages
[Subject: Generalities]
Translated in 31 languages
Translated in 28 languages
[Subject: Psychology]
Translated by: DAVID LAURENT
Translated in 6 languages
[Subject: Music]
Translated by: KATRIN HELD
Translated in 2 languages