Eckersley, C. E. (1942). Essential English (2a. ed.). Longmans Green.
Chicago Style (17th ed.) CitationEckersley, C. E. Essential English. 2a. ed. Londres: Longmans Green, 1942.
MLA (9th ed.) CitationEckersley, C. E. Essential English. 2a. ed. Longmans Green, 1942.
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