WHITE, R. V. (1979). Functional english 2: Exploitation. Thomas Nelson And Sons.
Lua i Stíl Chicago (17ú heag.)WHITE, Ronald V. Functional English 2: Exploitation. Middlesex: Thomas Nelson And Sons, 1979.
Lua MLA (9ú heag.)WHITE, Ronald V. Functional English 2: Exploitation. Thomas Nelson And Sons, 1979.
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