TY  - BOOK
AU  - Kratochwill,Thomas R.
TI  - Single subject research : : strategies for evaluating change 
SN  - 0124258506
U1  - 370.15 
PY  - 1978///.
CY  - New York  : 
PB  - Academic Press, 
KW  - Longitudinal method
KW  - Psychometrics
N1  - Includes Index.
ER  -