Vygotskiy L. S. K voprosu o mnogoyazychii v detskom vozraste = [On multilingualism in childhood] // Umstvennoye razvitiye detey v protsesse obucheniya: Sbornik statey / L. S. Vygotskiy. — M.–L.: Gosudarstvennoye uchebno-pedagogicheskoye izdatelstvo, 1935. — S. 53—72. — URL: https://psychlib.ru/inc/absid.php?absid=79868.
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