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[Subject: Water, Air, Space Transportation]
Translated by: MARCO PRADELLI
Translated in 95 languages
[Subject: Botany]
Translated by: IOANNIS LIOUMIS
Translated in 23 languages
[Subject: Mammalia (Mammals)]
Translated by: DAVID LAURENT
Translated in 11 languages
[Subject: Greece]
Translated by: SYLVIA VERGARA
Translated in 3 languages