Efficient grouping, regression and correlation in engel curve analysis : Preliminary and confidential revised manuscript

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Publisher	Stichting Mathematisch Centrum
Series	Stichting Mathematisch Centrum. Statistische Afdeling
Citation APA Style AAA Style APA Style Cell Style Chicago Style Harvard Style IEEE Style MLA Style Nature Style Vancouver Style American-Institute-of-Physics Style Council-of-Science-Editors Style BibTex Format Endnote Format RIS Format CSL Format DOIs only Format	Cramer, J. S. (1963). Efficient grouping, regression and correlation in engel curve analysis : Preliminary and confidential revised manuscript. Stichting Mathematisch Centrum. Statistische Afdeling. Stichting Mathematisch Centrum.

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