APA-čujuhus (7. p.)
ebrary, Inc, & John, P. (2011). Nudge, nudge, think, think: Experimenting with ways to change civic behaviour. Bloomsbury Academic.
Chicago-čujuhus (17. p.)
ebrary, Inc, juo Peter John. Nudge, Nudge, Think, Think: Experimenting with Ways to Change Civic Behaviour. London: Bloomsbury Academic, 2011.
MLA-čujuhus (9. p.)
ebrary, Inc, juo Peter John. Nudge, Nudge, Think, Think: Experimenting with Ways to Change Civic Behaviour. Bloomsbury Academic, 2011.
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