Roberts-Phelps, G. (2004). The concise guide to telephone tactics. Thorogood.
芝加哥风格引文Roberts-Phelps, Graham. The Concise Guide to Telephone Tactics. London: Thorogood, 2004.
MLA引文Roberts-Phelps, Graham. The Concise Guide to Telephone Tactics. Thorogood, 2004.
警告：这些引文格式不一定是100％准确.