00472pamaa2200169 4500 0000005022 20090721090000.0 053450468X 300.72 BAB 1998 H62.B2 BAB 1998 Babbie The Practice of social research Earl Babbie. 8th ed. California: Wadsworth Pub., 1998. xxiv, 738p.: 25cm. Social sciences -- Research Social sciences -- Methodology