Παραπομπή APA

Chu, H. (2009). Information representation and retrievel in the digital age. Ess Ess Publicaions.

Παραπομπή Chicago Style

Chu, Heting. Information Representation and Retrievel in the Digital Age. New Delhi: Ess Ess Publicaions, 2009.

Παραπομπή MLA

Chu, Heting. Information Representation and Retrievel in the Digital Age. Ess Ess Publicaions, 2009.