APA-viite

Nicholas, D., & Herman, E. (2009). Assessing information needs in the age of the digital consumer (3rd ed.). Routledge.

Chicago-tyylinen lähdeviittaus

Nicholas, David, ja Eti Herman. Assessing Information Needs in the Age of the Digital Consumer. 3rd ed. London: Routledge, 2009.

MLA-viite

Nicholas, David, ja Eti Herman. Assessing Information Needs in the Age of the Digital Consumer. 3rd ed. Routledge, 2009.