TY  - BOOK
AU  - Swann,Joanna
AU  - Pratt,John
TI  - Improving education: realist approches to method and research 
SN  - 0304705543 :
PY  - 1999///
CY  - London
PB  - Cassell
KW  - Popper, Karl R.
KW  - Education
KW  - Reesearch
KW  - Case studies
ER  -