Citazione Stile APA (7a Edizione)

Langan, J. (2001). College writing skills, media edition (5th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Langan, John. College Writing Skills, Media Edition. 5th ed. Boston: McGraw-Hill, 2001.

Citatione MLA (9a ed.)

Langan, John. College Writing Skills, Media Edition. 5th ed. McGraw-Hill, 2001.