APA (7th ed.) Zitazioa
JOHNSON, T. (1995). SUBSTANCE USE AND TREATMENT NEEDS AMONG HOMELESS PERSONS IN COOK COUNTY, ILLINOIS.
Chicago Style (17th ed.) Zitazioa
JOHNSON, T.P. SUBSTANCE USE AND TREATMENT NEEDS AMONG HOMELESS PERSONS IN COOK COUNTY, ILLINOIS. 1995.
MLA (9th ed.) Zitazioa
JOHNSON, T.P. SUBSTANCE USE AND TREATMENT NEEDS AMONG HOMELESS PERSONS IN COOK COUNTY, ILLINOIS. 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.