Cita APA (7th ed.)

Nevo, A., & Wolfram, C. (1999). Prices and coupons for breakfast cereals. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Nevo, Aviv, i Catherine Wolfram. Prices and Coupons for Breakfast Cereals. Cambridge: National Bureau of Economic Research, 1999.

Cita MLA (9th ed.)

Nevo, Aviv, i Catherine Wolfram. Prices and Coupons for Breakfast Cereals. National Bureau of Economic Research, 1999.