TY  - BOOK
AU  - Babbie,Earl R.
TI  - The practice of social research
SN  - 053405658X
U1  - 300.72 BAB 
PY  - 1986///
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Social sciences
N1  - Includes index; Bibliography: p. 561-565
UR  - https://www.gbv.de/dms/bowker/toc/9780534056582.pdf
ER  -