Gaya APA

Fox, E, A. et al (2005). Digital Libraries:Implementing Strategies and Sharing Experiences. PART VII : Information Retrieval Techniques . Germany: Springer-Verlag Berlin Heidelberg.

Gaya MLA

Fox, Edward, A.. et al. "Digital Libraries:Implementing Strategies and Sharing Experiences. PART VII : Information Retrieval Techniques". Germany: Springer-Verlag Berlin Heidelberg, 2005. e-book.