Cita APA (7a ed.)

Ziegler G. Gerhard. (2011). Numerical Distance Protection. Principles and Applications (4th ed.). Erlangen, Publicis Publishing, 2011.

Cita Chicago Style (17a ed.)

Ziegler G. Gerhard. Numerical Distance Protection. Principles and Applications. 4th ed. Erlangen, Publicis Publishing, 2011, 2011.

Cita MLA (9a ed.)

Ziegler G. Gerhard. Numerical Distance Protection. Principles and Applications. 4th ed. Erlangen, Publicis Publishing, 2011, 2011.