Posamentier, A. S., & Lehmann, I. (2006). Pi: A biography of the world's most mysterious number. Universities Press.
シカゴスタイル引用形Posamentier, Alfred S., , Ingmar Lehmann. Pi: A Biography of the World's Most Mysterious Number. Hyderabad: Universities Press, 2006.
MLA引用形式Posamentier, Alfred S., , Ingmar Lehmann. Pi: A Biography of the World's Most Mysterious Number. Universities Press, 2006.
警告: この引用は必ずしも正確ではありません.