VENTRELLA.S.W. (2001). THE POWER OF POSITIVE THINKING. VERMILION.
Chicagoスタイル(17版)引用形式VENTRELLA.S.W. THE POWER OF POSITIVE THINKING. LONDON: VERMILION, 2001.
MLA(9版)引用形式VENTRELLA.S.W. THE POWER OF POSITIVE THINKING. VERMILION, 2001.
警告: この引用は必ずしも正確ではありません.