APA (7th ed.) Citation

Ayob, K., Azraai, K., Fadil, O., Johan, S., Zulkifli, Y., & Normala, H. (2011). Agriculture drainage affects river water quality. The Institution of Engineers, Malaysia.

Chicago Style (17th ed.) Citation

Ayob, Katimon, Kassim Azraai, Othman Fadil, Sohaili Johan, Yusop Zulkifli, and Hashim Normala. Agriculture Drainage Affects River Water Quality. The Institution of Engineers, Malaysia, 2011.

MLA (9th ed.) Citation

Ayob, Katimon, et al. Agriculture Drainage Affects River Water Quality. The Institution of Engineers, Malaysia, 2011.