APA (7e ed.) Bronvermelding

Langan, J. (2005). College writing skills, with readings (6th ed.). McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Langan, John. College Writing Skills, with Readings. 6th ed. Boston: McGraw-Hill, 2005.

MLA (8e ed.) Bronvermelding

Langan, John. College Writing Skills, with Readings. 6th ed. McGraw-Hill, 2005.