APA (7th ed.) Citation

Widiastuti, N., Wu, H., Ang, H. M., & Zhang, D. (2011). Removal of ammonium from greywater using natural zeolite. Elsevier BV.

Chicago Style (17th ed.) Citation

Widiastuti, Nurul, Hongwei Wu, Ha Ming Ang, and D. Zhang. Removal of Ammonium from Greywater Using Natural Zeolite. Elsevier BV, 2011.

MLA (9th ed.) Citation

Widiastuti, Nurul, et al. Removal of Ammonium from Greywater Using Natural Zeolite. Elsevier BV, 2011.