Lua APA (7ú heag.)
Emily E. D. (2013). Perception of an object costs. Лань.
Lua i Stíl Chicago (17ú heag.)Emily E. D. Perception of an Object Costs. Санкт-Петербург: Лань, 2013.
Lua MLA (8ú heag.)Emily E. D. Perception of an Object Costs. Лань, 2013.
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