%0 Book %A Spector, Paul E. %I Sage Publ. %D 1981 %C Newbury Park, Calif. u.a. %G English %B Sage University papers / Quantitative applications in the social sciences %@ 0803917090 %T Research designs %J Sage University papers / Quantitative applications in the social sciences %U http://www.loc.gov/catdir/enhancements/fy0654/81040888-d.html %U http://www.loc.gov/catdir/enhancements/fy0738/81040888-b.html