APA aipamena

HALSALL FRED. (2004). DATA COMMUNICATIONS COMPUTER NETWORKS AND OPEN SYSTEMS (4TH.). PEARSON EDUCATION.

Chicago Style aipamena

HALSALL FRED. DATA COMMUNICATIONS COMPUTER NETWORKS AND OPEN SYSTEMS. 4TH. NEW DELHI: PEARSON EDUCATION, 2004.

MLA aipamena

HALSALL FRED. DATA COMMUNICATIONS COMPUTER NETWORKS AND OPEN SYSTEMS. 4TH. PEARSON EDUCATION, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.