Berry, S., Carvall, M., & Spiller, P. T. (1996). Airline hubs: Costs, markups and the implications of customer heterogeneity. National Bureau of Economic Research.
Citação norma ChicagoBerry, Steven, Michael Carvall, and Pablo T. Spiller. Airline Hubs: Costs, Markups and the Implications of Customer Heterogeneity. Cambridge: National Bureau of Economic Research, 1996.
Citação norma MLABerry, Steven, et al. Airline Hubs: Costs, Markups and the Implications of Customer Heterogeneity. National Bureau of Economic Research, 1996.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.