APA (7th ed.) Citation

Then, Y., Ling, T. Y., & Apun, K. (2005). Escherichia Coli survival in Lagoon waste water different temperature and pH.

Chicago Style (17th ed.) Citation

Then, Y.P, T. Y. Ling, and Kasing Apun. Escherichia Coli Survival in Lagoon Waste Water Different Temperature and PH. 2005.

MLA (9th ed.) Citation

Then, Y.P, et al. Escherichia Coli Survival in Lagoon Waste Water Different Temperature and PH. 2005.