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.
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