APA (7th ed.) Citation

Algan, Y., Cahuc, P., & Sangnier, M. (2011). Efficient and inefficient welfare states. Bonn.

Chicago Style (17th ed.) Citation

Algan, Yann, Pierre Cahuc, and Marc Sangnier. Efficient and Inefficient Welfare States. Bonn, 2011.

MLA (8th ed.) Citation

Algan, Yann, et al. Efficient and Inefficient Welfare States. Bonn, 2011.