Gaya APA

Maddox, R, N. (1985). Gas conditioning and processing Vol Iv : Gas and liquid sweetening (1985). Oklahoma: Oklohama : Campbell Petroleum Series,.

Gaya MLA

Maddox, Robert, N. "Gas conditioning and processing Vol Iv : Gas and liquid sweetening". 1985 Oklahoma: Oklohama : Campbell Petroleum Series,, 1985. Text.