Gagg, J. C. (1955). Teaching written English. Newnes Educational.
Chicagoスタイル(17版)引用形式Gagg, J. C. Teaching Written English. London: Newnes Educational, 1955.
MLA(8版)引用形式Gagg, J. C. Teaching Written English. Newnes Educational, 1955.
警告: この引用は必ずしも正確ではありません.