(英)艾伦·沃特金斯著. (2019). 4D领导力：四维领导者深度训练课：competitive advantage through vertical leadership development. 化学工业出版社.
Chicago Style (17th ed.) Citation(英)艾伦·沃特金斯著. 4D领导力：四维领导者深度训练课：competitive Advantage Through Vertical Leadership Development. 化学工业出版社, 2019.
ציטוט MLA(英)艾伦·沃特金斯著. 4D领导力：四维领导者深度训练课：competitive Advantage Through Vertical Leadership Development. 化学工业出版社, 2019.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.