APA-čujuhus (7. p.)
Keen, E. (2000). Chemicals for the mind: Psychopharmacology and human consciousness. Praeger.
Chicago-čujuhus (17. p.)
Keen, Ernest. Chemicals for the Mind: Psychopharmacology and Human Consciousness. Westport, Conn.: Praeger, 2000.
MLA-čujuhus (9. p.)
Keen, Ernest. Chemicals for the Mind: Psychopharmacology and Human Consciousness. Praeger, 2000.
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