Erstad, Ola & Sefton‐Green, Julian ed (2012) Identity, community, and learning lives in the digital ageCambridge UP (Cambridge & New York) isbn 978‐1‐10700‐591‐4 237 pp 103 http://www.cambridge.org/us/academic/subjects/psychology/educational‐psychology/identity‐community‐and‐learning‐lives‐digital‐age | Publicación