Cita APA (7a ed.)
ebrary, Inc, Proctor, A. P., & Waleford, J. T. (2009). Maintaining homeland security. Nova Science.
Cita Chicago Style (17a ed.)
ebrary, Inc, Alan P. Proctor, y Jason T. Waleford. Maintaining Homeland Security. New York: Nova Science, 2009.
Cita MLA (9a ed.)
ebrary, Inc, et al. Maintaining Homeland Security. Nova Science, 2009.
Precaución: Estas citas no son 100% exactas.