APA-čujuhus (7. p.)
Gupta, O. P. (2016). Elements of petroleum refinery engineering. Khanna Book Publishing Co.
Chicago-čujuhus (17. p.)
Gupta, Om Prakash. Elements of Petroleum Refinery Engineering. New Delhi: Khanna Book Publishing Co, 2016.
MLA-čujuhus (9. p.)
Gupta, Om Prakash. Elements of Petroleum Refinery Engineering. Khanna Book Publishing Co, 2016.
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