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Translated in 65 languages
[Subject: Generalities]
Translated by: ROGER PELGRIMS
Translated in 50 languages
[Subject: Construction In Specific Materials]
Translated by: ISAAC SMITH
Translated in 40 languages
Translated in 34 languages
Translated by: STEVEN STENFERT
Translated in 28 languages
[Subject: Economics]
Translated by: GUEST USER
Translated in 18 languages
[Subject: Physics]
Translated by: GERARD MEIJSSEN
Translated in 72 languages
Translated in 2 languages