APA (7th ed.) Citation

Ferreira, F. A., Ferreira, F., Ferreira, M., & Pinto, A. A. (2009). Quantity Competition in a Differentiated Duopoly.

Chicago Style (17th ed.) Citation

Ferreira, Fernanda A., Flávio Ferreira, Miguel Ferreira, and Alberto A. Pinto. Quantity Competition in a Differentiated Duopoly. 2009.

MLA (8th ed.) Citation

Ferreira, Fernanda A., et al. Quantity Competition in a Differentiated Duopoly. 2009.

Warning: These citations may not always be 100% accurate.