Bugg, D. D. (1968). Statistical methods in the social sciences. North-Holland Pub.
Lua i Stíl Chicago (17ú heag.)Bugg, D. D. Statistical Methods in the Social Sciences. Amsterdam: North-Holland Pub, 1968.
Lua MLA (9ú heag.)Bugg, D. D. Statistical Methods in the Social Sciences. North-Holland Pub, 1968.
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