Cita APA (7a ed.)

Keithley. (1992). Low level measurements (4a ed.). [s.n.].

Cita Chicago Style (17a ed.)

Keithley. Low Level Measurements. 4a ed. Alemania: [s.n.], 1992.

Cita MLA (9a ed.)

Keithley. Low Level Measurements. 4a ed. [s.n.], 1992.