Cita APA (7a ed.)

Ungrad, H., Winkler, W., & Wiszniewski, A. (1995). Protection techniques in electrical energy systems. Marcel Dekker.

Cita Chicago Style (17a ed.)

Ungrad, Helmut, Wilibald Winkler, y Andrzej Wiszniewski. Protection Techniques in Electrical Energy Systems. Marcel Dekker, 1995.

Cita MLA (8a ed.)

Ungrad, Helmut, et al. Protection Techniques in Electrical Energy Systems. Marcel Dekker, 1995.