APA (7th ed.) Zitazioa
Guthrie, W. K. C. (1975). The Greek philosophers: From Thales to Aristotle. Harper & Row.
Chicago Style (17th ed.) Zitazioa
Guthrie, W. K. C. The Greek Philosophers: From Thales to Aristotle. New York: Harper & Row, 1975.
MLA (9th ed.) Zitazioa
Guthrie, W. K. C. The Greek Philosophers: From Thales to Aristotle. Harper & Row, 1975.
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