Indian Institute of Petroleum. Annual report ... of the Indian Institute of Petroleum. s.n..
Čikaški stil citiranja (17. izdanje)Indian Institute of Petroleum. Annual Report ... of the Indian Institute of Petroleum. [Dehra Dun, India: s.n..
MLA način citiranja (8. izdanje)Indian Institute of Petroleum. Annual Report ... of the Indian Institute of Petroleum. s.n..
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