PETERSON, P. W. (1980). Changing Times, Changing Tenses Patricia Wilcox Peterson. English teaching division educ.
Chicagoスタイル(17版)引用形式PETERSON, Patricia Wilcox. Changing Times, Changing Tenses Patricia Wilcox Peterson. English teaching division educ, 1980.
MLA(8版)引用形式PETERSON, Patricia Wilcox. Changing Times, Changing Tenses Patricia Wilcox Peterson. English teaching division educ, 1980.
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