Cita APA (7th ed.)

.Abbasi, S., & abbasi, n. (2005). Renewable energy sources and their environmental impact. Prentice Hall.

Cita Chicago (17th ed.)

.Abbasi, S.A, i naseema abbasi. Renewable Energy Sources and Their Environmental Impact. New delhi: Prentice Hall, 2005.

Cita MLA (9th ed.)

.Abbasi, S.A, i naseema abbasi. Renewable Energy Sources and Their Environmental Impact. Prentice Hall, 2005.