Spencer, M. H. (1977). Contemporary macroeconomics (3rd ed.). Worth Publishing.
芝加哥风格引文Spencer, Milton H. Contemporary Macroeconomics. 3rd ed. New York: Worth Publishing, 1977.
MLA引文Spencer, Milton H. Contemporary Macroeconomics. 3rd ed. Worth Publishing, 1977.
警告：这些引文格式不一定是100％准确.