Title: Proceedings of the 1st International Congress on Activity Theory =
Subjects: Act (Philosophy), Congresses, Philosophy, Psychology, Learning, Cognition
People: A. R. Lurii︠a︡ (1902-), Alekseĭ Nikolaevich Leontʹev (1903-), L. S. Vygotskiĭ (1896-1934)