TY  - BOOK
AU  - Earl Babbie 
TI  - The practical of social research 
SN  - 13: 978-0-357-04839-9
U1  - Cir. 300.72 B112 C2019 
PY  - 2019///
CY  - Boston, USA
PB  - Cengage learning, Inc. 
ER  -