APA引文

Tan, K. N. (1993). The effect of heavy metals on the activated sludge process.

Chicago Style (17th ed.) Citation

Tan, Kok Ngee. The Effect of Heavy Metals on the Activated Sludge Process. 1993.

MLA引文

Tan, Kok Ngee. The Effect of Heavy Metals on the Activated Sludge Process. 1993.

警告：这些引文格式不一定是100％准确.