Trinidad and Tobago. Central Statistical Office. Annual statistical digest. G.P.O..
Lua i Stíl Chicago (17ú heag.)Trinidad and Tobago. Central Statistical Office. Annual Statistical Digest. [Port of Spain] Trinidad, B.W.I.: G.P.O..
Lua MLA (8ú heag.)Trinidad and Tobago. Central Statistical Office. Annual Statistical Digest. G.P.O..
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