Ray, S. (1993). The North -south economics: The growth divide of the world. Prentice hall of India.
芝加哥风格引文Ray, S. The North -south Economics: The Growth Divide of the World. delhi: Prentice hall of India, 1993.
MLA引文Ray, S. The North -south Economics: The Growth Divide of the World. Prentice hall of India, 1993.
警告：这些引文格式不一定是100％准确.