APA (7th ed.) Zitazioa
GRIFFITHS, P. (1999). DRUGS PREVENTION AMONG SCHOOL EXCLUDEES. EN: EVALUATING EFFECTIVENESS. DRUGS PREVENTION RESEARCH CONFERENCE. DECEMBER 3RD-5TH 1997. PAPER 20. DRUGS PREVENTION INITIATIVE.
Chicago Style (17th ed.) Zitazioa
GRIFFITHS, P. DRUGS PREVENTION AMONG SCHOOL EXCLUDEES. EN: EVALUATING EFFECTIVENESS. DRUGS PREVENTION RESEARCH CONFERENCE. DECEMBER 3RD-5TH 1997. PAPER 20. Londres: DRUGS PREVENTION INITIATIVE, 1999.
MLA (9th ed.) Zitazioa
GRIFFITHS, P. DRUGS PREVENTION AMONG SCHOOL EXCLUDEES. EN: EVALUATING EFFECTIVENESS. DRUGS PREVENTION RESEARCH CONFERENCE. DECEMBER 3RD-5TH 1997. PAPER 20. DRUGS PREVENTION INITIATIVE, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.