Gaya APA

Adler, M, J. et al (2007). Great books of the Western World 33 : John Locke, A letter concerning toleration, Concerning civil government, Second essays; George Berkeley, The principles of human knowledge; David Hume, An enquiry concerning human understanding (2nd ed.). Chicago: Encyclopaedia Britannica, Inc..

Gaya MLA

Adler, Mortimer, J.. et al. "Great books of the Western World 33 : John Locke, A letter concerning toleration, Concerning civil government, Second essays; George Berkeley, The principles of human knowledge; David Hume, An enquiry concerning human understanding". 2nd ed. Chicago: Encyclopaedia Britannica, Inc., 2007. Text.