APA引文

Czaika, M. (2017). The gravity of high-skilled migration policies. Springer Verlag.

Chicago Style (17th ed.) Citation

Czaika, M. The Gravity of High-skilled Migration Policies. Springer Verlag, 2017.

MLA引文

Czaika, M. The Gravity of High-skilled Migration Policies. Springer Verlag, 2017.

警告：這些引文格式不一定是100％准確.