APA (7th ed.) Citation

Ridzuan, F., Potdar, V., & Singh, J. (2011). Storage cost of spam 2.0 in a web discussion forum. ACM.

Chicago Style (17th ed.) Citation

Ridzuan, Farida, Vidyasagar Potdar, and Jaipal Singh. Storage Cost of Spam 2.0 in a Web Discussion Forum. ACM, 2011.

MLA (9th ed.) Citation

Ridzuan, Farida, et al. Storage Cost of Spam 2.0 in a Web Discussion Forum. ACM, 2011.