Understanding causes and generalizing about them

Manylion Llyfryddiaeth
Awduron Eraill:	Sechrest, Lee, Scott, Anne G. 1949- (Anne Grete), Lipsey, Mark W., Cook, Thomas D.
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	San Francisco, Calif. Jossey-Bass c1993.
Pynciau:	Evaluation research (Social action programs) Social sciences > Research > Methodology.