Gaya APA

Case, D, O. (2007). Looking for information : a survey of research on information seeking, needs, and behavior (2nd ed.). New York: Elsevier/Academic Press.

Gaya MLA

Case, Donald, Owen.. "Looking for information : a survey of research on information seeking, needs, and behavior". 2nd ed. New York: Elsevier/Academic Press, 2007. print.