THORPE,EDGAR, T. (2013). THE PEARSON CONCISE GENERAL KNOWLEDGE MANUAL 2014. PEARSON.
Lua i Stíl Chicago (17ú heag.)THORPE,EDGAR, THORPE,S. THE PEARSON CONCISE GENERAL KNOWLEDGE MANUAL 2014. DELHI: PEARSON, 2013.
Lua MLA (9ú heag.)THORPE,EDGAR, THORPE,S. THE PEARSON CONCISE GENERAL KNOWLEDGE MANUAL 2014. PEARSON, 2013.
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