TY  - BOOK
AU  - Yin,Robert K
TI  - Case study research : design and methods 
SN  - 080392058X 
AV  - H62 .Y56 1984
U1  - 300.722 22
PY  - 1984///
CY  - Beverly Hills
PB  - Sage Publications
KW  - Case method
KW  - Social sciences
KW  - Research
N1  - Includes indexes; Bibliography: p. 147-151
ER  -