Não informado. (1968). Behavior Research Methods and Instrumentation. Psychonomic Society.
Chicago-referens (17:e uppl.)Não informado. Behavior Research Methods and Instrumentation. Austin, Tex: Psychonomic Society, 1968.
MLA-referens (8:e uppl.)Não informado. Behavior Research Methods and Instrumentation. Psychonomic Society, 1968.
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