Lua APA (7ú heag.)

Rai, G. (2020). Non-Conventional Energy Sources (06th.). Khanna Publisher.

Lua i Stíl Chicago (17ú heag.)

Rai, G.D. Non-Conventional Energy Sources. 06th. New Delhi: Khanna Publisher, 2020.

Lua MLA (9ú heag.)

Rai, G.D. Non-Conventional Energy Sources. 06th. Khanna Publisher, 2020.

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