APA (7th ed.) Zitazioa

Ward , r. P. . .. (1969). Introduction to electrical engineering (3rd ed.). Prentice Hall.

Chicago Style (17th ed.) Zitazioa

Ward , robert P. Introduction to Electrical Engineering. 3rd ed. New Delhi: Prentice Hall, 1969.

MLA (9th ed.) Zitazioa

Ward , robert P. Introduction to Electrical Engineering. 3rd ed. Prentice Hall, 1969.