Lua APA (7ú heag.)

CLARK, D. (1996). Urban World Global City. Routledge.

Lua i Stíl Chicago (17ú heag.)

CLARK, David. Urban World Global City. Routledge, 1996.

Lua MLA (8ú heag.)

CLARK, David. Urban World Global City. Routledge, 1996.

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