Dale Carnegie. (1999). Đắc nhân tâm: = How to win friends and influence people. Hà Nội: Văn Hóa.
シカゴスタイル引用形Dale Carnegie. Đắc Nhân Tâm: = How to Win Friends and Influence People. Hà Nội: Văn Hóa, 1999.
MLA引用形式Dale Carnegie. Đắc Nhân Tâm: = How to Win Friends and Influence People. Hà Nội: Văn Hóa, 1999.
警告: この引用は必ずしも正確ではありません.