Cita APA (7a ed.)

Blunden, A. (2010). An interdisciplinary theory of activity. Brill.

Cita Chicago Style (17a ed.)

Blunden, Andy. An Interdisciplinary Theory of Activity. Leiden ; Boston: Brill, 2010.

Cita MLA (9a ed.)

Blunden, Andy. An Interdisciplinary Theory of Activity. Brill, 2010.