APA-viite (7. p.)
CLARKE, A. A BRIEF HISTORY OF THE INTERNATIONAL ASSOCIATION FOR THE SCIENTIFIC STUDY OF MENTAL DEFICIENCY (IASSMD).
Chicago-viite (17. p.)
CLARKE, A.D.B. A BRIEF HISTORY OF THE INTERNATIONAL ASSOCIATION FOR THE SCIENTIFIC STUDY OF MENTAL DEFICIENCY (IASSMD).
MLA-viite (9. p.)
CLARKE, A.D.B. A BRIEF HISTORY OF THE INTERNATIONAL ASSOCIATION FOR THE SCIENTIFIC STUDY OF MENTAL DEFICIENCY (IASSMD).
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.