Cita APA (7a ed.)
Ensmenger, N. (2011). Historical Reflections Building Castles in the Air. Communications of the ACM, 54(4), 28-31.
Cita Chicago Style (17a ed.)
Ensmenger, Nathan. "Historical Reflections Building Castles in the Air." Communications of the ACM 54, no. 4 (2011): 28-31.
Cita MLA (9a ed.)
Ensmenger, Nathan. "Historical Reflections Building Castles in the Air." Communications of the ACM, vol. 54, no. 4, 2011, pp. 28-31.
Precaución: Estas citas no son 100% exactas.