Roberts-Phelps, G. (2004). The concise guide to telephone tactics. Thorogood.
Chicagoスタイル(17版)引用形式Roberts-Phelps, Graham. The Concise Guide to Telephone Tactics. London: Thorogood, 2004.
MLA(9版)引用形式Roberts-Phelps, Graham. The Concise Guide to Telephone Tactics. Thorogood, 2004.
警告: この引用は必ずしも正確ではありません.