Langan, J. (2003). Sentence skills: A workbook for writers : form A (7th ed.). McGraw-Hill.
Chicago (17e ed.) BronvermeldingLangan, John. Sentence Skills: A Workbook for Writers : Form A. 7th ed. Boston: McGraw-Hill, 2003.
MLA (8e ed.) BronvermeldingLangan, John. Sentence Skills: A Workbook for Writers : Form A. 7th ed. McGraw-Hill, 2003.
Let op: Deze citaties zijn niet altijd 100% accuraat.