APA (7th ed.) Zitazioa
TOPP, L. (2002). AUSTRALIAN DRUG TRENDS 2001. FINDINGS OF THE ILLICIT DRUG REPORTING SYSTEM (IDRS). NATIONAL DRUG AND ALCOHOL RESEARCH CENTRE.
Chicago Style (17th ed.) Zitazioa
TOPP, L. AUSTRALIAN DRUG TRENDS 2001. FINDINGS OF THE ILLICIT DRUG REPORTING SYSTEM (IDRS). RANDWICK: NATIONAL DRUG AND ALCOHOL RESEARCH CENTRE, 2002.
MLA (9th ed.) Zitazioa
TOPP, L. AUSTRALIAN DRUG TRENDS 2001. FINDINGS OF THE ILLICIT DRUG REPORTING SYSTEM (IDRS). NATIONAL DRUG AND ALCOHOL RESEARCH CENTRE, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.