APA引用形式

Langan John. (2005). User's Guide: College Writing Skills and College Writing Skills with Readings (Tái bản lần thứ 6.). American: MC Graw Hill.

シカゴスタイル引用形

Langan John. User's Guide: College Writing Skills and College Writing Skills With Readings. Tái bản lần thứ 6. American: MC Graw Hill, 2005.

MLA引用形式

Langan John. User's Guide: College Writing Skills and College Writing Skills With Readings. Tái bản lần thứ 6. American: MC Graw Hill, 2005.

警告: この引用は必ずしも正確ではありません.