APA (7th ed.) Citation

Andrews, D., Caldera Sánchez, A., & Johansson, A. (2011). Towards a better understanding of the informal economy. Paris.

Chicago Style (17th ed.) Citation

Andrews, Dan, Aida Caldera Sánchez, and Asa Johansson. Towards a Better Understanding of the Informal Economy. Paris, 2011.

MLA (8th ed.) Citation

Andrews, Dan, et al. Towards a Better Understanding of the Informal Economy. Paris, 2011.