TY  - BOOK
AU  - Yin,Robert K.
TI  - Case study research : design and methods
AV  - H62 Y56C 1994
PY  - 1994///
CY  - Thousand Oaks, Calif.
PB  - Sage
KW  - CASE METHOD
KW  - SOCIAL SCIENCES
KW  - RESEARCH
KW  - METHODOLOGY
ER  -