RT Book
T1 The design and costing of 911 systems: a technical manual; final report; prep. for Bureau of Justice Statistics Task 4.1
A1 Yung, T. J.
A2 Dayharsh, T. I.
LA English
PP Bethesda, Md. u.a.
PB U.S. Govt. Print Office
YR 1980
ED rev.
UL https://krimdok.uni-tuebingen.de/Record/1099265711
NO 911=Universal Emergency Telephone Number