APA-referens (7:e uppl.)

TISAL, J. (2002). THE GSM NETWORK: GPRS EVOLUTION 2ND EDI. JOHN WILEY.

Chicago-referens (17:e uppl.)

TISAL, JOACHIM. THE GSM NETWORK: GPRS EVOLUTION 2ND EDI. CHICHESTER: JOHN WILEY, 2002.

MLA-referens (9:e uppl.)

TISAL, JOACHIM. THE GSM NETWORK: GPRS EVOLUTION 2ND EDI. JOHN WILEY, 2002.