SpringerLink (Online service), Felsenstein, D., & Portnov, B. A. (2005). Regional disparities in small countries. Springer-Verlag.
芝加哥风格引文SpringerLink (Online service), Daniel Felsenstein, 与 Boris A. Portnov. Regional Disparities in Small Countries. Berlin, Heidelberg: Springer-Verlag, 2005.
MLA引文SpringerLink (Online service), et al. Regional Disparities in Small Countries. Springer-Verlag, 2005.
警告：这些引文格式不一定是100％准确.