Gill, R. T. (1967). Economic development: Past and present. Prentice-Hall.
芝加哥风格引文Gill, Richard T. Economic Development: Past and Present. Englewood Cliffs, NJ: Prentice-Hall, 1967.
MLA引文Gill, Richard T. Economic Development: Past and Present. Prentice-Hall, 1967.
警告：这些引文格式不一定是100％准确.