TY  - BOOK
AU  - Yin,Robert K.
TI  - Case study research: design and methods 
T2  - Applied social research methods series
SN  - 080393470X
PY  - 1989///
CY  - Newbury Park, London
PB  - Sage
KW  - Social sciences
KW  - Research
KW  - Case method
N1  - Previous ed.: 1984; Bibliography: p153-157. ) Includes index
ER  -