Langan, J. (2003). Sentence skills: A workbook for writers : form A (7th ed.). McGraw-Hill.
Chicagoスタイル(17版)引用形式Langan, John. Sentence Skills: A Workbook for Writers : Form A. 7th ed. Boston: McGraw-Hill, 2003.
MLA(8版)引用形式Langan, John. Sentence Skills: A Workbook for Writers : Form A. 7th ed. McGraw-Hill, 2003.
警告: この引用は必ずしも正確ではありません.