00818nam0-22002891i-450-990003107680403321013496828X000310768FED01000310768(Aleph)000310768FED0100031076820000920d1970----km-y0itay50------baENGIT<<An >>introduction to social research[by] Hubert M. Blalock, Jr.Englewood CliffsN.JPrentice-Hall[1970].120 p.23 cmPrentice-Hall general sociology seriesBlalock,Hubert M.ITUNINARICAUNIMARCBK99000310768040332110100 BLA043230SESSESIntroduction to social research462477UNINAING01