TY - BOOK AU - Engeström,Yrjö AU - Miettinen,Reijo AU - Punamäki-Gitai,Raija-Leena TI - Perspectives on activity theory T2 - Learning in doing SN - 9780521431279 (hbk.) PY - 1999/// CY - New York PB - Cambridge University Press KW - Intentionalism KW - Congresses KW - Action theory N1 - Chiefly selected contributions from the Second International Congress for Research on Activity Theory, held in 1990 in Lahti, Finland; Includes bibliographical references and index ER -