Wardhaugh, R. (1987). Languages in competition: Dominance, diversity, and decline. Blackwell.
Chicagoスタイル(17版)引用形式Wardhaugh, Ronald. Languages in Competition: Dominance, Diversity, and Decline. Oxford: Blackwell, 1987.
MLA(9版)引用形式Wardhaugh, Ronald. Languages in Competition: Dominance, Diversity, and Decline. Blackwell, 1987.
警告: この引用は必ずしも正確ではありません.