APA (7th ed.) Zitazioa
Greene, R. (2018). The laws of human nature. Penguine books.
Chicago Style (17th ed.) Zitazioa
Greene, Robert. The Laws of Human Nature. Mew york: Penguine books, 2018.
MLA (9th ed.) Zitazioa
Greene, Robert. The Laws of Human Nature. Penguine books, 2018.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.