Cita APA (7a ed.)

Lewis, D. K. (1987). On the plurality of worlds (1st [ed.], repr.). Basil Blackwell.

Cita Chicago Style (17a ed.)

Lewis, David K. On the Plurality of Worlds. 1st [ed.], repr. Oxford [etc.]: Basil Blackwell, 1987.

Cita MLA (9a ed.)

Lewis, David K. On the Plurality of Worlds. 1st [ed.], repr. Basil Blackwell, 1987.