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[Subject: Generalities]
Translated by: PEZZUOLI CLAUDIO
Translated in 50 languages
Translated by: TZUNG-HSIEN CHEN
Translated in 49 languages
Translated in 35 languages
Translated by: MARIA GRAZIA GHIDONI
Translated in 26 languages
Translated by: SYLVIA VERGARA
Translated in 20 languages
[Subject: Psychology]
Translated by: DAVID LAURENT
Translated in 9 languages
Translated in 2 languages