"labovitz, sanford . "
introduction to social research: / sanford.. labovitz - 3 ed. - usa : mcgraw-hill 1981. - "xii, 160p.; 20 cm."
0 07 035777 3
H62 / .L24 1981
introduction to social research: / sanford.. labovitz - 3 ed. - usa : mcgraw-hill 1981. - "xii, 160p.; 20 cm."
0 07 035777 3
H62 / .L24 1981