Armstrong-Wright, A. (1987). Bus services: Reducing costs, raising standards. World Bank.
Chicagoスタイル(17版)引用形式Armstrong-Wright, Alan. Bus Services: Reducing Costs, Raising Standards. Washington: World Bank, 1987.
MLA(9版)引用形式Armstrong-Wright, Alan. Bus Services: Reducing Costs, Raising Standards. World Bank, 1987.
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