Não informado. (1930). Agricultural Notes. Trinidad Tobago, Department of Agriculture.
Chicagoスタイル(17版)引用形式Não informado. Agricultural Notes. Port of Spain: Trinidad Tobago, Department of Agriculture, 1930.
MLA(8版)引用形式Não informado. Agricultural Notes. Trinidad Tobago, Department of Agriculture, 1930.
警告: この引用は必ずしも正確ではありません.