Hill, N. (1988). Think and grow rich. Fawcett Crest.
Chicago Style aipamenaHill, Napoleon. Think and Grow Rich. New York: Fawcett Crest, 1988.
MLA aipamenaHill, Napoleon. Think and Grow Rich. Fawcett Crest, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.