TY - BOOK AU - Engeness,Irina TI - P. Y. Galperin's Development of Human Mental Activity: Lectures in Educational Psychology T2 - Cultural Psychology of Education Ser. SN - 9783030640224 AV - LB1050.9-1091 PY - 2020/// CY - Cham PB - Springer International Publishing AG KW - Electronic books UR - https://www.nbs.de/bibliothek/faq UR - https://ebookcentral.proquest.com/lib/nbsde/detail.action?docID=6425458 ER -