HENDERSON, J. V., POOLE, W., & PARISH, A. E. (1991). Student workbook for principles of economics. D.C. Heath and Company.
芝加哥风格引文HENDERSON, J. Vernon, William POOLE, 与 Albert E. PARISH. Student Workbook for Principles of Economics. Lexington: D.C. Heath and Company, 1991.
MLA引文HENDERSON, J. Vernon, et al. Student Workbook for Principles of Economics. D.C. Heath and Company, 1991.
警告：这些引文格式不一定是100％准确.