PETERSON, P. W. (1980). Changing Times, Changing Tenses Patricia Wilcox Peterson. English teaching division educ.
Čikaški stil citiranja (17. izdanje)PETERSON, Patricia Wilcox. Changing Times, Changing Tenses Patricia Wilcox Peterson. English teaching division educ, 1980.
MLA način citiranja (8. izdanje)PETERSON, Patricia Wilcox. Changing Times, Changing Tenses Patricia Wilcox Peterson. English teaching division educ, 1980.
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