Cita APA (7a ed.)

Powell, J. L., & Wahidin, A. (2009). Risk and social welfare. Nova Science Publ.

Cita Chicago Style (17a ed.)

Powell, Jason L., y Azrini Wahidin. Risk and Social Welfare. New York, NY: Nova Science Publ, 2009.

Cita MLA (9a ed.)

Powell, Jason L., y Azrini Wahidin. Risk and Social Welfare. Nova Science Publ, 2009.