John, R. S. (2011). The 8 Traits successful people have in common. Embassy book.
Chicagoスタイル(17版)引用形式John, Richard St. The 8 Traits Successful People Have in Common. Mumbai: Embassy book, 2011.
MLA(9版)引用形式John, Richard St. The 8 Traits Successful People Have in Common. Embassy book, 2011.
警告: この引用は必ずしも正確ではありません.