APA引文

Spencer, M. (1983). Contemporary economics (5th. ed.). Worth.

芝加哥风格引文

Spencer, Milton. Contemporary Economics. 5th. ed. New York: Worth, 1983.

MLA引文

Spencer, Milton. Contemporary Economics. 5th. ed. Worth, 1983.

警告：这些引文格式不一定是100％准确.