APA Style

Snow, N., Cull, N, J. (2020). Routledge handbook of public diplomacy (2nd ed). Abingdon, Oxon, England ; New : Routledge.

MLA Style

Snow, Nancy,., Cull, Nicholas, John,. "Routledge handbook of public diplomacy". 2nd ed Abingdon, Oxon, England ; New : Routledge, 2020. PDF.