TY  - BOOK
AU  - Yin, Robert K
TI  - Case Study Research: Design and methods
SN  - 9781452242569
U1  - 300.72 YIN 
PY  - 2015///
CY  - UK
PB  - Sage
KW  -  Robert K
KW  - Case study research
KW  - Yin
ER  -