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Translated by: CLAUDIA GIERSBERG
Translated in 73 languages
[Subject: Generalities]
Translated by: DAVID LAURENT
Translated in 8 languages
[Subject: Sound & Related Vibrations]
Translated by: ROBERT GRIGOR BAXTER
Translated in 7 languages
[Subject: Cine]
Translated in 6 languages
[Subject: Electricity & Electronics]
Translated in 5 languages
Translated by: SABINE CRETELLA
Translated in 2 languages