Não informado. (1909). Bulletin of the Department of Agriculture, Trinidad and Tobago. Trinidad and Tobago Department of Agriculture.
Citação do estilo Chicago (17ª ed.)Não informado. Bulletin of the Department of Agriculture, Trinidad and Tobago. Port of Spain: Trinidad and Tobago Department of Agriculture, 1909.
Citação MLA (8ª ed.)Não informado. Bulletin of the Department of Agriculture, Trinidad and Tobago. Trinidad and Tobago Department of Agriculture, 1909.
警告：这些引文格式不一定是100％准确.