RAI G D. (2016). NON CONVENTIONAL SOURCES OF ENERGY (5TH ED.). KHANNA PUBLISHERS.
Chicago-čujuhus (17. p.)RAI G D. NON CONVENTIONAL SOURCES OF ENERGY. 5TH ED. NEW DELHI: KHANNA PUBLISHERS, 2016.
MLA-čujuhus (9. p.)RAI G D. NON CONVENTIONAL SOURCES OF ENERGY. 5TH ED. KHANNA PUBLISHERS, 2016.
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