APA-viite (7. p.)
WILLIAMSON, S., & ET AL. ADVERSE EFFECTS OF STIMULANT DRUGS IN A COMMUNITY SAMPLE OF DRUG USERS.
Chicago-viite (17. p.)
WILLIAMSON, S., ja ET AL. ADVERSE EFFECTS OF STIMULANT DRUGS IN A COMMUNITY SAMPLE OF DRUG USERS.
MLA-viite (9. p.)
WILLIAMSON, S., ja ET AL. ADVERSE EFFECTS OF STIMULANT DRUGS IN A COMMUNITY SAMPLE OF DRUG USERS.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.