APA (7th ed.) Citation

Costa, F. A., Cruz, E., & Viana, J. (2012). Managing personal learning environments: The voice of the students.

Chicago Style (17th ed.) Citation

Costa, Fernando Albuquerque, Elisabete Cruz, and Joana Viana. Managing Personal Learning Environments: The Voice of the Students. 2012.

MLA (8th ed.) Citation

Costa, Fernando Albuquerque, et al. Managing Personal Learning Environments: The Voice of the Students. 2012.