Diagnostic and statistical manual of mental disorders : DSM-IV-TR
International Encyclopedia of the social and behavioral sciences
A Dictionary of Psychology
The Blackwell encyclopedia of social psychology
Psychologists' desk reference
PsycINFO: (BEST!) The world's most comprehensive source for bibliographic coverage of psychology and behavioral sciences literature. Subjects covered: education, linguistics, medicine, nursing, pharmacology, physiology, psychiatry, sociology, and other areas. Coverage: 1887 to the present. Updated weekly.
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A writer's reference PE1408 .H2778 2003 (Science Reference)
Handbook of research design & social measurement (Leyburn Level 4)