TY  - BOOK
AU  - Yin Robert K
TI  - Case Study Research Design and Methods
SN  - 9781412960991
U1  - 300.722 YIN 
PY  - 2009///
CY  - Los Angeles
PB  - Sage Publications
KW  -  Research Design
KW  -  Research Methods
KW  - Case Study
ER  -