Subject
- Accelerometers -- Data processing1
- Acetic acid1
- Acetylene compounds1
- Achievement motivation1
- Action research in education1
- Adaptive control systems1
- Adjustment (Psychology)1
- Adolescent psychotherapy -- Outcome assessment1
- Adult learning -- Evaluation1
- Adventure education -- Psychological aspects1
- Adventure therapy for teenagers -- Evaluation1
- Aerial observation (Military science)1
- Aerogels1
- Aeromonas salmonicida -- Oregon -- Willamette River Watershed1
- Aerospace telemetry1
- Affluent consumers -- United States -- Attitudes1
- African Americans -- Kinship -- United States1
- African Americans -- Race identity -- United States1
- African Americans -- Social aspects -- United States1
- African elephant1