Citace podle APA (7th ed.)

(2018). The age of walls: How barriers between nations are changing our world / Tim Marshall.

Citace podle Chicago (17th ed.)

The Age of Walls: How Barriers Between Nations Are Changing Our World / Tim Marshall. 2018.

Citace podle MLA (9th ed.)

The Age of Walls: How Barriers Between Nations Are Changing Our World / Tim Marshall. 2018.

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