Lewis-Beck, M. S. (1980). Applied regression: An introduction. Sage Publications.
Lua i Stíl Chicago (17ú heag.)Lewis-Beck, Michael S. Applied Regression: An Introduction. Beverly Hills, Calif. ; New Delhi: Sage Publications, 1980.
Lua MLA (8ú heag.)Lewis-Beck, Michael S. Applied Regression: An Introduction. Sage Publications, 1980.
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