Funk, W. (1971). SiX weeks to words of power. Pocket Books.
Chicagoスタイル(17版)引用形式Funk, Wilfred. SiX Weeks to Words of Power. New York, Estados Unidos: Pocket Books, 1971.
MLA(9版)引用形式Funk, Wilfred. SiX Weeks to Words of Power. Pocket Books, 1971.
警告: この引用は必ずしも正確ではありません.