Rubel, G. (1988). Factors determining external debt: An intertemporal study. Springer-Verlag.
芝加哥风格引文Rubel, Gerhard. Factors Determining External Debt: An Intertemporal Study. Berlin: Springer-Verlag, 1988.
MLA引文Rubel, Gerhard. Factors Determining External Debt: An Intertemporal Study. Springer-Verlag, 1988.
警告：这些引文格式不一定是100％准确.