Não informado. (1953). Social and economics studies. University of West Indies, Institute of Social and Economic Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Social and Economics Studies. Kingston: University of West Indies, Institute of Social and Economic Research, 1953.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Social and Economics Studies. University of West Indies, Institute of Social and Economic Research, 1953.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.