APA (7th ed.) Citation

Robaina-Alves, M., Moutinho, V., & Macedo, P. (2015). A new frontier approach to model the eco-efficiency in European countries.

Chicago Style (17th ed.) Citation

Robaina-Alves, Margarita, Victor Moutinho, and Pedro Macedo. A New Frontier Approach to Model the Eco-efficiency in European Countries. 2015.

MLA (8th ed.) Citation

Robaina-Alves, Margarita, et al. A New Frontier Approach to Model the Eco-efficiency in European Countries. 2015.