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APA-referens

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

Chicago-stil citat

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-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.