ALLEN, R., & ALLEN, R. Statistics For Economics R.g.d. Allen. Hutchinson University Library.
Lua i Stíl Chicago (17ú heag.)ALLEN, R.G.D, agus R.G.D ALLEN. Statistics For Economics R.g.d. Allen. Hutchinson University Library.
Lua MLA (8ú heag.)ALLEN, R.G.D, agus R.G.D ALLEN. Statistics For Economics R.g.d. Allen. Hutchinson University Library.
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