APA (7th ed.) Citation

Walters, A. A. (1979). Costs and scale of bus services. World Bank.

Chicago Style (17th ed.) Citation

Walters, A. A. Costs and Scale of Bus Services. Washington: World Bank, 1979.

MLA (9th ed.) Citation

Walters, A. A. Costs and Scale of Bus Services. World Bank, 1979.