Hewings, M. (2007). Advanced english grammar. Cambridge University Press.
Chicagoスタイル(17版)引用形式Hewings, Martin. Advanced English Grammar. New Delhi: Cambridge University Press, 2007.
MLA(9版)引用形式Hewings, Martin. Advanced English Grammar. Cambridge University Press, 2007.
警告: この引用は必ずしも正確ではありません.