George M. Rooks. (1999). Paragraph power: Communication ideas through paragraphs (For upper intermediate students of English ). New York: Longman.
Chicago-tyylinen lähdeviittausGeorge M. Rooks. Paragraph Power: Communication Ideas Through Paragraphs (For Upper Intermediate Students of English ). New York: Longman, 1999.
MLA-viiteGeorge M. Rooks. Paragraph Power: Communication Ideas Through Paragraphs (For Upper Intermediate Students of English ). New York: Longman, 1999.
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