Citazione Stile APA (7a Edizione)

Roeper, R., & Friedrich, M. (1985). Short-circuit currents in three-phase systems (2a. ed.). Siemens Aktiengesellschaft: Wiley.

Citazione stile Chigago Style (17a edizione)

Roeper, Richar, e Mitlehner Friedrich. Short-circuit Currents in Three-phase Systems. 2a. ed. Berlín: Siemens Aktiengesellschaft: Wiley, 1985.

Citatione MLA (9a ed.)

Roeper, Richar, e Mitlehner Friedrich. Short-circuit Currents in Three-phase Systems. 2a. ed. Siemens Aktiengesellschaft: Wiley, 1985.