Clarke, W. M. (1967). The city in the world economy. London: Penguin.
Trích dẫn kiểu ChicagoClarke, William M. The City in the World Economy. London: Penguin, 1967.
MLA CitationClarke, William M. The City in the World Economy. London: Penguin, 1967.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.