APA-referens

Peterson, P. W. (1999). Changing perspectives - A review of the english tense system. U.S.: United States Information Agency.

Chicago-stil citat

Peterson, Patricia Wilcox. Changing Perspectives - A Review of the English Tense System. U.S.: United States Information Agency, 1999.

MLA-referens

Peterson, Patricia Wilcox. Changing Perspectives - A Review of the English Tense System. U.S.: United States Information Agency, 1999.

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