APA-čujuhus (7. p.)

Seng Tom & Dutton Institute. EBF 301. Processing and Natural Gas Liquids (NGLs).

Chicago-čujuhus (17. p.)

Seng Tom juo Dutton Institute. EBF 301. Processing and Natural Gas Liquids (NGLs).

MLA-čujuhus (9. p.)

Seng Tom juo Dutton Institute. EBF 301. Processing and Natural Gas Liquids (NGLs).

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