Cita APA (7th ed.)

Bils, M., & Klenow, P. J. (2000). Quantifying quality growth. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Bils, Mark, i Peter J. Klenow. Quantifying Quality Growth. Cambridge: National Bureau of Economic Research, 2000.

Cita MLA (9th ed.)

Bils, Mark, i Peter J. Klenow. Quantifying Quality Growth. National Bureau of Economic Research, 2000.