The practice of social research /
Babbie, Earl R.
The practice of social research / Earl R. Babbie. - 2nd. ed. - Carlifornia : Wadsworth, 1979. - 596 p.
0534006302
Social science research.
Social sciences- methodology.
H 62 / .B2
The practice of social research / Earl R. Babbie. - 2nd. ed. - Carlifornia : Wadsworth, 1979. - 596 p.
0534006302
Social science research.
Social sciences- methodology.
H 62 / .B2