David K. Williams. (2013). The 7 Non-negotiables of winning: Tying Soft Traits to Hard Results. Canada: John Wiley & Sons, Inc.
Trích dẫn kiểu ChicagoDavid K. Williams. The 7 Non-negotiables of Winning: Tying Soft Traits to Hard Results. Canada: John Wiley & Sons, Inc, 2013.
ציטוט MLADavid K. Williams. The 7 Non-negotiables of Winning: Tying Soft Traits to Hard Results. Canada: John Wiley & Sons, Inc, 2013.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.