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[Subject: Railroads, Roads, Highways]
Translated by: JOSEP GUILLEN I MILLA
Translated in 44 languages
[Subject: Generalities]
Translated by: JUAN GOMEZ ESCOBAR
Translated in 21 languages
Translated in 16 languages
[Subject: Architecture]
Translated by: JOCELYN MEERSOHN MORALES
Translated in 88 languages
[Subject: Ichthyology ]
Translated in 28 languages
[Subject: Buildings]
Translated in 13 languages