Cita APA (7a ed.)

Yung, T. J., & Dayharsh, T. I. (1980). The design and costing of 911 systems: A technical manual; final report; prep. for Bureau of Justice Statistics Task 4.1 (rev.). U.S. Govt. Print Office.

Cita Chicago Style (17a ed.)

Yung, T. J., y T. I. Dayharsh. The Design and Costing of 911 Systems: A Technical Manual; Final Report; Prep. for Bureau of Justice Statistics Task 4.1. rev. [Bethesda, Md.] [u.a.]: U.S. Govt. Print Office, 1980.

Cita MLA (8a ed.)

Yung, T. J., y T. I. Dayharsh. The Design and Costing of 911 Systems: A Technical Manual; Final Report; Prep. for Bureau of Justice Statistics Task 4.1. rev. U.S. Govt. Print Office, 1980.