Mental Measurements Yearbook with Tests in Print
Descriptive information and critical reviews of more than 2,000 commercially-available standardized tests.
HAPI (Health and Psychosocial Instruments)
Descriptions of behavioral tests and measurements in health fields, psychosocial sciences.
DSM-5 Library (Diagnostic and Statistical Manual of Mental Disorders)
A set of searchable, full-text reference works for psychiatric diagnosis.
WHO International Classification of Diseases
International diagnostic classification for diseases and other health problems, including mental disorders.