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[Subject: Geology, Meteorology, Hydrology]
Translated by: OMAR DABBOUS
Translated in 171 languages
[Subject: Generalities]
Translated in 110 languages
[Subject: Ecology]
Translated in 88 languages
[Subject: Biology]
Translated by: CHEHAIMI MOHAMAD
Translated in 42 languages
Translated in 23 languages
Translated in 21 languages
Translated by: ROA TERRO
Translated in 2 languages