Loo, B. P. Are there useful yardsticks of population size and income level for building metro systems?: Some worldwide evidence. Cities. : the international journal of urban and regional planning.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Loo, Becky P.Y. "Are There Useful Yardsticks of Population Size and Income Level for Building Metro Systems?: Some Worldwide Evidence." Cities. : The International Journal of Urban and Regional Planning .
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Loo, Becky P.Y. "Are There Useful Yardsticks of Population Size and Income Level for Building Metro Systems?: Some Worldwide Evidence." Cities. : The International Journal of Urban and Regional Planning, .
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