Não informado. (1953). Social and economics studies. University of West Indies, Institute of Social and Economic Research.
Čikaški stil citiranja (17. izdanje)Não informado. Social and Economics Studies. Kingston: University of West Indies, Institute of Social and Economic Research, 1953.
MLA način citiranja (8. izdanje)Não informado. Social and Economics Studies. University of West Indies, Institute of Social and Economic Research, 1953.
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