NA. (2001). Gcse writing skills. Coordination Group Publications.
Chicagoスタイル(17版)引用形式NA. Gcse Writing Skills. Coordination Group Publications, 2001.
MLA(9版)引用形式NA. Gcse Writing Skills. Coordination Group Publications, 2001.
警告: この引用は必ずしも正確ではありません.