APA (7th ed.) Zitazioa
Walle, A. H. (2001). Qualitative research in intelligence and marketing: The new strategic convergence. Quorum Books.
Chicago Style (17th ed.) Zitazioa
Walle, Alf H. Qualitative Research in Intelligence and Marketing: The New Strategic Convergence. Westport, Conn.: Quorum Books, 2001.
MLA (9th ed.) Zitazioa
Walle, Alf H. Qualitative Research in Intelligence and Marketing: The New Strategic Convergence. Quorum Books, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.