APA (7th ed.) Zitazioa
OLSZEWSKI, D. EMERGING TRENDS AND LEADING-EDGE INDICATORS.
Chicago Style (17th ed.) Zitazioa
OLSZEWSKI, D. EMERGING TRENDS AND LEADING-EDGE INDICATORS.
MLA (9th ed.) Zitazioa
OLSZEWSKI, D. EMERGING TRENDS AND LEADING-EDGE INDICATORS.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.