@article{Uruntaeva2019n.k.,
author={Uruntaeva, G.A.},
title={N.K. Krupskaya on the psychological foundations  of preschool education (on the occasion of the 150th birthday)},
journal={Journal of Pedagogical Studies},
publisher={INFRA-M Academic Publishing LLC.},
year={2019},
pages={33-40},
volume={4},
issue={4},
}