Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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