00626naa#a2200169#i#450# EN\INFRA-M\bibl\40497 20250121195336.2 2500-3305 20201130b2020####ek#y0engy0150####ca RU The problem of a holistic approach to the study of a child in Russian child psychology in the 20-30s Journal article Moscow INFRA-M Academic Publishing LLC. 2020 10 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 Uruntaeva G. A. naukaru.ru