Cita APA (7th ed.)

Rai G.D. (2020). Non-Conventional Energy Sources (6th.). Khanna Publishers.

Cita Chicago (17th ed.)

Rai G.D. Non-Conventional Energy Sources. 6th. Delhi: Khanna Publishers, 2020.

Cita MLA (9th ed.)

Rai G.D. Non-Conventional Energy Sources. 6th. Khanna Publishers, 2020.