GUENOLE NIGEL & FERRAR JONATHAN FEINZIG SHERI. (2018). POWER OF PEOPLE. PEARSON.
Chicago Style aipamenaGUENOLE NIGEL and FERRAR JONATHAN FEINZIG SHERI. POWER OF PEOPLE. INDIA: PEARSON, 2018.
MLA aipamenaGUENOLE NIGEL and FERRAR JONATHAN FEINZIG SHERI. POWER OF PEOPLE. PEARSON, 2018.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.