APA引文

(1997). Tobacco: World markets and trade. l997: Leaf exports for selected countries. USA: United States Department of agriculture.

Trích dẫn kiểu Chicago

Tobacco: World Markets and Trade. L997: Leaf Exports for Selected Countries. USA: United States Department of agriculture, 1997.

MLA引文

Tobacco: World Markets and Trade. L997: Leaf Exports for Selected Countries. USA: United States Department of agriculture, 1997.

警告：這些引文格式不一定是100％准確.