(1869). Two letters on causation and freedom in willing, addressed to John Stuart Mill: With an appendix on the existence of matter, and our notions of infinite space ([Mikrofilm-Ausg.].). Lee and Shepard.
Chicago-Zitierstil (17. Ausg.)Two Letters on Causation and Freedom in Willing, Addressed to John Stuart Mill: With an Appendix on the Existence of Matter, and Our Notions of Infinite Space. [Mikrofilm-Ausg.]. Boston: Lee and Shepard, 1869.
MLA-Zitierstil (9. Ausg.)Two Letters on Causation and Freedom in Willing, Addressed to John Stuart Mill: With an Appendix on the Existence of Matter, and Our Notions of Infinite Space. [Mikrofilm-Ausg.]. Lee and Shepard, 1869.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.