Não informado. (1909). Circular of the Department of Agriculture, Trinidad and Tobago. Circular of the Department of Agriculture.
Chicago-Zitierstil (17. Ausg.)Não informado. Circular of the Department of Agriculture, Trinidad and Tobago. Port of Spain: Circular of the Department of Agriculture, 1909.
MLA-Zitierstil (8. Ausg.)Não informado. Circular of the Department of Agriculture, Trinidad and Tobago. Circular of the Department of Agriculture, 1909.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.