Mandino, O. (2007). greatest secret in the world. Jaico Publishing House.
シカゴスタイル引用形Mandino, Og. Greatest Secret in the World. Mumbai: Jaico Publishing House, 2007.
MLA引用形式Mandino, Og. Greatest Secret in the World. Jaico Publishing House, 2007.
警告: この引用は必ずしも正確ではありません.