Cita APA (7a ed.)
Samuelson, P. A. (September/October 1999). Two gods that fail. Challenge (05775132), 42(5), 29-34.
Cita Chicago Style (17a ed.)
Samuelson, Paul Anthony. "Two Gods That Fail." Challenge (05775132) 42, no. 5 (September/October 1999): 29-34.
Cita MLA (9a ed.)
Samuelson, Paul Anthony. "Two Gods That Fail." Challenge (05775132), vol. 42, no. 5, September/October 1999, pp. 29-34.
Precaución: Estas citas no son 100% exactas.