TY  - BOOK
AU  - Yin,Robert K
TI  - Case study research : design and methods 
T2  - Applied social research methods series
SN  - 0803934718 
AV  - H62 .Y56 1989
U1  - 300.722 22
PY  - 1989///
CY  - Newbury
PB  - Sage
KW  - Case method
KW  - Social sciences
KW  - Research
KW  - Methodology
N1  - Includes indexes; Bibliography: p. 153-157
ER  -