Piehl, A. M. (1999). Testing for structural breaks in the evaluation of programs. National Bureau of Economic Research.
Cita Chicago (17th ed.)Piehl, Anne Morrison. Testing for Structural Breaks in the Evaluation of Programs. Cambridge: National Bureau of Economic Research, 1999.
Cita MLA (9th ed.)Piehl, Anne Morrison. Testing for Structural Breaks in the Evaluation of Programs. National Bureau of Economic Research, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.