APA (7th ed.) Zitazioa
Hill, N. (1960). Think and grow rich. Ballantine books.
Chicago Style (17th ed.) Zitazioa
Hill, Napoleon. Think and Grow Rich. New york: Ballantine books, 1960.
MLA (9th ed.) Zitazioa
Hill, Napoleon. Think and Grow Rich. Ballantine books, 1960.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.