Παραπομπή APA

Langan, J. (2003). Sentence skills: A Workbook for Writers. New York: The McGraw-Hill Companies.

Παραπομπή Chicago Style

Langan, John. Sentence Skills: A Workbook for Writers. New York: The McGraw-Hill Companies, 2003.

Παραπομπή MLA

Langan, John. Sentence Skills: A Workbook for Writers. New York: The McGraw-Hill Companies, 2003.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.