APA (7th ed.) Citation

Barros, J. P., Gomes, L., & Garcia, L. (2013). A Proposal for the Description of Individual Course Units.

Chicago Style (17th ed.) Citation

Barros, João Paulo, Luís Gomes, and Luís Garcia. A Proposal for the Description of Individual Course Units. 2013.

MLA (8th ed.) Citation

Barros, João Paulo, et al. A Proposal for the Description of Individual Course Units. 2013.