Cita APA (7a ed.)
Sampson, D. G. Digital Systems for Open Access to Formal and Informal Learning. Springer.
Cita estilo Chicago (17a ed.)
Sampson, Demetrios G. Digital Systems for Open Access to Formal and Informal Learning. Cham, Suiza: Springer.
Cita MLA (9a ed.)
Sampson, Demetrios G. Digital Systems for Open Access to Formal and Informal Learning. Springer.
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