Gaya APA

Risdiyani, E. et al (2003). Brief reports day treatment with contingency management for cocaine abuse in homeless persons: 12-month follow-up (Vol. 71, No. 03, Tahun). : .

Gaya MLA

Risdiyani, E.. et al. "Brief reports day treatment with contingency management for cocaine abuse in homeless persons: 12-month follow-up". Vol. 71, No. 03, Tahun : , 2003. Text.