APA引文

Tan, G. L. (2009). A study of the metal contents in some organic and conventional crops.

Chicago Style (17th ed.) Citation

Tan, Ghok Lan. A Study of the Metal Contents in Some Organic and Conventional Crops. 2009.

MLA引文

Tan, Ghok Lan. A Study of the Metal Contents in Some Organic and Conventional Crops. 2009.

警告：這些引文格式不一定是100％准確.