ROBERTS-PHELPS GRAHAM. (2000). SALES TRAINING GAMES. GOWER.
芝加哥风格引文ROBERTS-PHELPS GRAHAM. SALES TRAINING GAMES. U S A: GOWER, 2000.
MLA引文ROBERTS-PHELPS GRAHAM. SALES TRAINING GAMES. GOWER, 2000.
警告：这些引文格式不一定是100％准确.
APA引文