APA (7th ed.) Zitazioa
Plakitsi, K. (2013). Activity theory in formal and informal science education. Sense.
Chicago Style (17th ed.) Zitazioa
Plakitsi, Katerina. Activity Theory in Formal and Informal Science Education. Rotterdam: Sense, 2013.
MLA (9th ed.) Zitazioa
Plakitsi, Katerina. Activity Theory in Formal and Informal Science Education. Sense, 2013.
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