Helmus, T. C., Chalk, P., & York, E. (2013). Promoting online voices for countering violent extremism. [Santa Monica, California?]: RAND Corporation.
Chicago Style CitationHelmus, Todd C., Peter Chalk, and Erin York. Promoting Online Voices for Countering Violent Extremism. [Santa Monica, California?]: RAND Corporation, 2013.
MLA CitationHelmus, Todd C., Peter Chalk, and Erin York. Promoting Online Voices for Countering Violent Extremism. [Santa Monica, California?]: RAND Corporation, 2013.
Warning: These citations may not always be 100% accurate.