Coles, P., & Ellis, G. (1997). Is the Universe Open or Closed?: The Density of Matter in the Universe. Cambridge University Press.
Chicagoスタイル(17版)引用形式Coles, Peter, , George Ellis. Is the Universe Open or Closed?: The Density of Matter in the Universe. Cambridge, United Kingdom: Cambridge University Press, 1997.
MLA(9版)引用形式Coles, Peter, , George Ellis. Is the Universe Open or Closed?: The Density of Matter in the Universe. Cambridge University Press, 1997.
警告: この引用は必ずしも正確ではありません.