Cita APA (7a ed.)
Samuelson, D. N. (Jul91). On the Plurality of Worlds. Science Fiction Studies, 18(2), 272-276.
Cita Chicago Style (17a ed.)
Samuelson, David N. "On the Plurality of Worlds." Science Fiction Studies 18, no. 2 (Jul91): 272-276.
Cita MLA (9a ed.)
Samuelson, David N. "On the Plurality of Worlds." Science Fiction Studies, vol. 18, no. 2, Jul91, pp. 272-276.
Precaución: Estas citas no son 100% exactas.