APA (7th ed.) Citation

Zimmermann, K. F., & Kahanec, M. (2008). Migration in an enlarged EU: A challenging solution? Bonn.

Chicago Style (17th ed.) Citation

Zimmermann, Klaus F., and Martin Kahanec. Migration in an Enlarged EU: A Challenging Solution? Bonn, 2008.

MLA (8th ed.) Citation

Zimmermann, Klaus F., and Martin Kahanec. Migration in an Enlarged EU: A Challenging Solution? Bonn, 2008.

Warning: These citations may not always be 100% accurate.