„Map And Details Of All 7 Continents“. worldatlas.com. — „In some parts of the world students are taught that there are only six continents, as they combine North America and South America into one continent called the Americas.“. Qaraldi: 2-sentabr 2016-yil.
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"Janubiy Amerika" OʻzME. J-harfi[sayt ishlamaydi] Birinchi jild. Toshkent, 2000-yil
