Tohutoro APA (7th ed.)
De, B. K. (2011). Introduction to energy management (2nd ed.). Virinda Pub.
Tohutoru Kātū Chicago (17th ed.)
De, Barun Kumar. Introduction to Energy Management. 2nd ed. Delhi: Virinda Pub, 2011.
Tohutoro MLA (9th ed.)
De, Barun Kumar. Introduction to Energy Management. 2nd ed. Virinda Pub, 2011.
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