APA
Van Rossem R., . (2005). Individual and contextual factors affecting secondary abstinence among youth in Madagascar and Cameroon. WashingtonUS: Population Services International.
Chicago
Van Rossem Ronan, . 2005. Individual and contextual factors affecting secondary abstinence among youth in Madagascar and Cameroon. WashingtonUS: Population Services International.
Harvard
Van Rossem R., . (2005). Individual and contextual factors affecting secondary abstinence among youth in Madagascar and Cameroon. WashingtonUS: Population Services International.
MLA
Van Rossem Ronan, . Individual and contextual factors affecting secondary abstinence among youth in Madagascar and Cameroon. WashingtonUS: Population Services International. 2005.