Roberts-Phelps Graham. (2005). Guide to Telephone Tactics (1.). VIVA Books Private Limited.
芝加哥风格引文Roberts-Phelps Graham. Guide to Telephone Tactics. 1. New Delhi: VIVA Books Private Limited, 2005.
MLA引文Roberts-Phelps Graham. Guide to Telephone Tactics. 1. VIVA Books Private Limited, 2005.
警告：这些引文格式不一定是100％准确.