Lua APA (7ú heag.)
Helmus, T. C., York, E., & Chalk, P. (2013). Promoting online voices for countering violent extremism. Rand Corp..
Lua i Stíl Chicago (17ú heag.)
Helmus, Todd C., Erin York, agus Peter Chalk. Promoting Online Voices for Countering Violent Extremism. [Santa Monica, Calif.]: Rand Corp., 2013.
Lua MLA (9ú heag.)
Helmus, Todd C., et al. Promoting Online Voices for Countering Violent Extremism. Rand Corp., 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.