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Lua i Stíl Chicago (17ú heag.)Mulligen, Peter Hein van. Quality Aspects in Price Indices and International Comparions: Applications of the Hedonic Method. Netherlands: Rijksuniversiteit te Groningen, 2003.
Lua MLA (8ú heag.)Mulligen, Peter Hein van. Quality Aspects in Price Indices and International Comparions: Applications of the Hedonic Method. Rijksuniversiteit te Groningen, 2003.
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