TY  - BOOK
AU  - Shadish, William R
AU  - Cook, Thomas D
AU  - Campbell,Donald T.
TI  - Experimental and quasi-experimental designs for generalized causal inference
SN  - 0395615569
AV  - BD 591 S48.2002
PY  - 2002///],
CY  - Belmont, Calif.
PB  - Wadsworth Cengage Learning
KW  - Causation
KW  - Experiments
KW  - Causalidad
KW  - Esperimentos
N1  - Incluye referencias bibliográficas (páginas 514-591) e índices
UR  - http://www.loc.gov/catdir/enhancements/fy1105/2001131551-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy1105/2001131551-t.html
ER  -