Price, R. (1997). Napoleon Hill and the Second Empire. Routledge.
Chicagoスタイル(17版)引用形式Price, Roger. Napoleon Hill and the Second Empire. London: Routledge, 1997.
MLA(9版)引用形式Price, Roger. Napoleon Hill and the Second Empire. Routledge, 1997.
警告: この引用は必ずしも正確ではありません.