Gower, R. (2006). Grammar in practice 6 (First edition.). Cambridge University Press.
Chicagoスタイル(17版)引用形式Gower, Roger. Grammar in Practice 6. First edition. Cambridge: Cambridge University Press, 2006.
MLA(9版)引用形式Gower, Roger. Grammar in Practice 6. First edition. Cambridge University Press, 2006.
警告: この引用は必ずしも正確ではありません.