Evans, D. (1977). Mathematics: Friend or foen. Allen and Unwin.
Chicagoスタイル(17版)引用形式Evans, Dorothy. Mathematics: Friend or Foen. London: Allen and Unwin, 1977.
MLA(9版)引用形式Evans, Dorothy. Mathematics: Friend or Foen. Allen and Unwin, 1977.
警告: この引用は必ずしも正確ではありません.