Cita APA (7a ed.)

Locke, J., Berkeley, G., & Hume, D. (1993). A letter concerning toleration ; Concerning civil government, second essay ; An essay concerning human understanding (2nd ed., 4th repr.). Encyclopaedia Britannica.

Cita Chicago Style (17a ed.)

Locke, John, George Berkeley, y David Hume. A Letter Concerning Toleration ; Concerning Civil Government, Second Essay ; An Essay Concerning Human Understanding. 2nd ed., 4th repr. Chicago [etc.]: Encyclopaedia Britannica, 1993.

Cita MLA (9a ed.)

Locke, John, et al. A Letter Concerning Toleration ; Concerning Civil Government, Second Essay ; An Essay Concerning Human Understanding. 2nd ed., 4th repr. Encyclopaedia Britannica, 1993.