APA-čujuhus (7. p.)
HOPFER, C., & ET AL. (2001). HEROIN USE AMONG ADOLESCENTS IN TREATMENT FOR SUBSTANCE USE DISORDERS.
Chicago-čujuhus (17. p.)
HOPFER, C.J, juo ET AL. HEROIN USE AMONG ADOLESCENTS IN TREATMENT FOR SUBSTANCE USE DISORDERS. 2001.
MLA-čujuhus (9. p.)
HOPFER, C.J, juo ET AL. HEROIN USE AMONG ADOLESCENTS IN TREATMENT FOR SUBSTANCE USE DISORDERS. 2001.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.