格雷 & 哈里斯. (2011). 人人都有一块幸运石: Reallionaire nine steps to becoming rich from the inside out. 人民日报出版社.
Chicago Style (17th ed.) Citation格雷 i 哈里斯. 人人都有一块幸运石: Reallionaire Nine Steps to Becoming Rich from the Inside Out. 人民日报出版社, 2011.
Cita MLA格雷 i 哈里斯. 人人都有一块幸运石: Reallionaire Nine Steps to Becoming Rich from the Inside Out. 人民日报出版社, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.