APA (7th ed.) Citation

Congress for Research on Activity Theory, Engeström, Y., Miettinen, R., & Punamäki, R. (1999). Perspectives on activity theory. Cambridge University Press.

Chicago Style (17th ed.) Citation

Congress for Research on Activity Theory, Yrjö Engeström, Reijo Miettinen, and Raija-Leena Punamäki. Perspectives on Activity Theory. Cambridge (UK): Cambridge University Press, 1999.

MLA (9th ed.) Citation

Congress for Research on Activity Theory, et al. Perspectives on Activity Theory. Cambridge University Press, 1999.