APA (7e ed.) Bronvermelding
Langan, J. (1998). Sentence skills: A workbook for writers : form A (6th ed.). McGraw-Hill.
Chicago (17e ed.) Bronvermelding
Langan, John. Sentence Skills: A Workbook for Writers : Form A. 6th ed. Boston: McGraw-Hill, 1998.
MLA (9e ed.) Bronvermelding
Langan, John. Sentence Skills: A Workbook for Writers : Form A. 6th ed. McGraw-Hill, 1998.
Let op: Deze citaties zijn niet altijd 100% accuraat.