Citazione Stile APA (7a Edizione)
OMS. (1988). INTERNATIONAL REFERENCE LIST OF RESOURCE AND RESEARCH CENTRES IN THE FIELD OF MENTAL RETARDATION. OMS.
Citazione stile Chigago Style (17a edizione)
OMS. INTERNATIONAL REFERENCE LIST OF RESOURCE AND RESEARCH CENTRES IN THE FIELD OF MENTAL RETARDATION. GINEBRA: OMS, 1988.
Citatione MLA (9a ed.)
OMS. INTERNATIONAL REFERENCE LIST OF RESOURCE AND RESEARCH CENTRES IN THE FIELD OF MENTAL RETARDATION. OMS, 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.