Engeness, I. (2021). P.Y. Galperin's Development of Human Mental Activity: Lectures in Educational Psychology (1st ed. 2021.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-030-64022-4

Engeness, Irina. P.Y. Galperin's Development of Human Mental Activity: Lectures in Educational Psychology. 1st ed. 2021. Cham: Springer International Publishing : Imprint: Springer, 2021. https://doi.org/10.1007/978-3-030-64022-4.

Engeness, Irina. P.Y. Galperin's Development of Human Mental Activity: Lectures in Educational Psychology. 1st ed. 2021. Springer International Publishing : Imprint: Springer, 2021. https://doi.org/10.1007/978-3-030-64022-4.