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[Subject: Generalities]
Translated by: GUEST USER
Translated in 45 languages
Translated in 32 languages
[Subject: Architecture]
Translated in 10 languages
Translated in 8 languages
[Subject: Geology, Meteorology, Hydrology]
Translated by: SYLVIA VERGARA
Translated in 6 languages
[Subject: Athletic & Outdoor Sports & Games]
Translated in 4 languages
[Subject: Mechanics]
Translated in 2 languages