Cita APA (7a ed.)

Siemens, S. (1979). Communications test equipment 78/79 (14a ed.). Siemens.

Cita Chicago Style (17a ed.)

Siemens, S.A. Communications Test Equipment 78/79. 14a ed. Alemania: Siemens, 1979.

Cita MLA (9a ed.)

Siemens, S.A. Communications Test Equipment 78/79. 14a ed. Siemens, 1979.