Cita APA (7a ed.)

Siemens (empresa). Audio and high frequency measuring instruments (Edition january 1938. Base on the 1934 Edition with important alterations.).

Cita Chicago Style (17a ed.)

Siemens (empresa). Audio and High Frequency Measuring Instruments. Edition january 1938. Base on the 1934 Edition with important alterations.

Cita MLA (9a ed.)

Siemens (empresa). Audio and High Frequency Measuring Instruments. Edition january 1938. Base on the 1934 Edition with important alterations.