TY  - BOOK
AU  - Yin,Robert K.
TI  - Case study research : design and methods
SN  - 0803920571
PY  - 1984///
CY  - Beverly Hills, Calif.
PB  - Sage Publications
KW  - Case method.
KW  - Social sciences -- Research.
N1  - Abstracts Includes indexes
ER  -