APA
Eberspacher J. &. V. H., . (1999). GSM Switching, Service and Protocals. John Wiley & Sons, New York: .
Chicago
Eberspacher Jorg & Vogel Hans-Jorg, . 1999. GSM Switching, Service and Protocals. John Wiley & Sons, New York: .
Harvard
Eberspacher J. &. V. H., . (1999). GSM Switching, Service and Protocals. John Wiley & Sons, New York: .
MLA
Eberspacher Jorg & Vogel Hans-Jorg, . GSM Switching, Service and Protocals. John Wiley & Sons, New York: . 1999.