Research designs.
Spector, Paul E.
Research designs. - New Delhi Sage Publications, 1981 - 80p. - (Quantitative Applications in the Social Sciences) .
0803917090
Research
Social Sciencee Research
H 62:N81R:SPE
Research designs. - New Delhi Sage Publications, 1981 - 80p. - (Quantitative Applications in the Social Sciences) .
0803917090
Research
Social Sciencee Research
H 62:N81R:SPE