APA (7th ed.) Citation

Ling, T. Y., Lipan, S., & Singh, H. (2007). Heavy metals retention in Oxidation Pond Systems.

Chicago Style (17th ed.) Citation

Ling, Teck Yee, Sylvia Lipan, and Harwant Singh. Heavy Metals Retention in Oxidation Pond Systems. 2007.

MLA (9th ed.) Citation

Ling, Teck Yee, et al. Heavy Metals Retention in Oxidation Pond Systems. 2007.