The practice of social research /
Babbie, Earl.
The practice of social research / Earl Babbie. - 5th.ed. - Belmont : Wadsworth, 1989. - 501 p.
053409726x
Social sciences--Methodology.
Social sciences--Research.
H 62
The practice of social research / Earl Babbie. - 5th.ed. - Belmont : Wadsworth, 1989. - 501 p.
053409726x
Social sciences--Methodology.
Social sciences--Research.
H 62