APA (7th ed.) Citation

Allman, E. (2006). E-mail authentication: What, why, how? ACM queue : architecting tomorrow's computing..

Chicago Style (17th ed.) Citation

Allman, Eric. "E-mail Authentication: What, Why, How?" ACM Queue : Architecting Tomorrow's Computing. 2006.

MLA (9th ed.) Citation

Allman, Eric. "E-mail Authentication: What, Why, How?" ACM Queue : Architecting Tomorrow's Computing., 2006.

Warning: These citations may not always be 100% accurate.