ebrary, Inc, Huggins, L. E., & Skandera, H. (2004). Population puzzle: Boom or bust? Hoover Institution Press.
芝加哥风格引文ebrary, Inc, Laura E. Huggins, 与 Hanna Skandera. Population Puzzle: Boom or Bust? Stanford, Calif.: Hoover Institution Press, 2004.
MLA引文ebrary, Inc, et al. Population Puzzle: Boom or Bust? Hoover Institution Press, 2004.
警告：这些引文格式不一定是100％准确.