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[Subject: Biology]
Translated by: DRAGOMIR PEROVIC
Translated in 17 languages
Translated in 14 languages
[Subject: Mathematics]
Translated in 8 languages
[Subject: Geology, Meteorology, Hydrology]
Translated in 3 languages
[Subject: Computer Science, Antivirus]
[Subject: Generalities]
Translated in 2 languages
Translated in 4 languages