Cita APA (7th ed.)

ebrary, Inc, & Lewandowski, D. (2012). Web search engine research. Emerald.

Cita Chicago (17th ed.)

ebrary, Inc, i Dirk Lewandowski. Web Search Engine Research. Bingley: Emerald, 2012.

Cita MLA (9th ed.)

ebrary, Inc, i Dirk Lewandowski. Web Search Engine Research. Emerald, 2012.