APA-ийн эшлэл(7 дахь хэвлэлт)

HALSALL FRED. (1999). DATA COMMUNICATIONS COMPUTER NETWORK AND OPEN SYSTEMS. ADDISON WESLEY.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

HALSALL FRED. DATA COMMUNICATIONS COMPUTER NETWORK AND OPEN SYSTEMS. HARLAW: ADDISON WESLEY, 1999.

MLA -ийн эшлэл (9 дэх хэвлэлт)

HALSALL FRED. DATA COMMUNICATIONS COMPUTER NETWORK AND OPEN SYSTEMS. ADDISON WESLEY, 1999.