Cita APA (7th ed.)

Pernia, E. M., & Alabastro, S. L. (1997). Aspects of urban water and sanitation in the context of rapid urbanization in developing Asia. Asian Development Bank, Economics and Development Resource Center.

Cita Chicago (17th ed.)

Pernia, Ernesto M., i Stella LF Alabastro. Aspects of Urban Water and Sanitation in the Context of Rapid Urbanization in Developing Asia. Mandaluyong City: Asian Development Bank, Economics and Development Resource Center, 1997.

Cita MLA (9th ed.)

Pernia, Ernesto M., i Stella LF Alabastro. Aspects of Urban Water and Sanitation in the Context of Rapid Urbanization in Developing Asia. Asian Development Bank, Economics and Development Resource Center, 1997.