SPERLING, A. a. S. (1967). Mathematics made simple. W.H.Allen.
Chicagoスタイル(17版)引用形式SPERLING, Abraham and STUART. Mathematics Made Simple. London: W.H.Allen, 1967.
MLA(9版)引用形式SPERLING, Abraham and STUART. Mathematics Made Simple. W.H.Allen, 1967.
警告: この引用は必ずしも正確ではありません.