APA-ийн эшлэл(7 дахь хэвлэлт)

Tortola, P., & King, D. (2012). Federalism, the state and the city: Explaining urban policy institutions in the United States and in the European Union.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Tortola, P., ба D. King. Federalism, the State and the City: Explaining Urban Policy Institutions in the United States and in the European Union. 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Tortola, P., ба D. King. Federalism, the State and the City: Explaining Urban Policy Institutions in the United States and in the European Union. 2012.