Ward, R. P. (1960). Introduction to electrical engineering (3rd ed.). Prentice-Hall.
芝加哥风格引文Ward, Robert Page. Introduction to Electrical Engineering. 3rd ed. New York ; New Delhi: Prentice-Hall, 1960.
MLA引文Ward, Robert Page. Introduction to Electrical Engineering. 3rd ed. Prentice-Hall, 1960.
警告：这些引文格式不一定是100％准确.